Maytag LD10MP Service manual

Service

This manual is to be used by qualified appliance technicians only. Maytag does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person.

This service manual replaces 16022123.

Countertop

Commercial

Microwave

Ovens

This manual covers technical service information.

This manual includes, but is not limited to the following:

LD10D2

LD10MP

P1329702M

P1329703M

LD10MPS P1329708M

16023053

Revision 0

April 2004

2

Important Information

Important Notices for Servicers and Consumers

Maytag will not be responsible for personal injury or property damage from improper service procedures. Pride and workmanship go into every product to provide our customers with quality products. It is possible, however, that during its lifetime a product may require service. Products should be serviced only by a qualified service technician who is familiar with the safety procedures required in the repair and who is equipped with the proper tools, parts, testing instruments and the appropriate service information. IT IS THE TECHNICIANS RESPONSIBLITY TO REVIEW ALL

APPROPRIATE SERVICE INFORMATION BEFORE BEGINNING REPAIRS.

!

WARNING

To avoid risk of severe personal injury or death, disconnect power before working/servicing on appliance to avoid electrical shock.

To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this product. For further assistance, please contact:

Commercial Support Center

CAIR Center

Web Site Telephone Number

WWW.AMANACOMMERCIAL.COM ....................... 1-866-426-2621

Recognize Safety Symbols, Words, and Labels

!

DANGER

DANGER—Immediate hazards which WILL result in severe personal injury or death.

!

WARNING

WARNING—Hazards or unsafe practices which COULD result in severe personal injury or death.

!

CAUTION

CAUTION—Hazards or unsafe practices which COULD result in minor personal injury, product or property damage.

16023053 Rev. 0 ©2004 Maytag Appliances Company

Table of Contents

Important Information .................................................... 2

Important Safety Information ....................................... 4-8

General Information

Unpacking Equipment ................................................ 9

Placement of the Oven ............................................... 9

Radio Interference ...................................................... 9

Model Identification .................................................... 9

Service ....................................................................... 9

Parts and Accessories .............................................. 10

Extended Service Plan .............................................. 10

Microwave Oven Features ......................................... 10

Microwave Specifications .......................................... 10

Troubleshooting Procedures ................................... 11-15

Component Testing Procedures ................................... 16

Microwave Power Test Procedures

Power Test (Traditional 1 Liter Test) .......................... 18

Microwave Leakage Testing

Equipment ................................................................ 19

Procedure For Measuring Radiation Leakage ........... 19

Measurement With the Outer Panel Removed .......... 19

Measurement With a Fully Assembled Oven ............ 19

Record Keeping and Notification After Measurement 19

Disassembly Procedures

Disconnecting Wire Terminals .................................. 20

Outer Case ............................................................... 20

Door Assembly ......................................................... 20

Door Disassembly .................................................... 21

Control Panel ............................................................ 21

Controller Removal (Electronic Models) .................... 22

Key Pad Removal ..................................................... 22

Timer Removal (Dial Models) .................................... 22

Interlock Switches .................................................... 23

High Voltage Capacitor ............................................. 23

Diode ........................................................................ 24

Transformer .............................................................. 24

Fuse Block / Filter Assembly ................................... 24

Fuse ......................................................................... 24

Magnetron ................................................................ 24

Fan Motor ................................................................. 24

Cavity Thermostat ..................................................... 25

Light Socket / Bulb Assembly .................................. 25

Antenna .................................................................... 25

Stirrer Motor .............................................................. 25

Wiring Diagrams And Schematics ............................... 26

Appendix A

Operation—LD10 .................................................... A-2

Cooking Guidelines ................................................. A-7

Care and Cleaning .................................................. A-9

Before Calling for Service ...................................... A-10

Appendix B

Operation—LD10D .................................................. B-2

Cooking Guidelines ................................................. B-3

Care and Cleaning .................................................. B-5

Before Calling for Service ........................................ B-6

©2004 Maytag Appliances Company 16023053 Rev. 0 3

3

4

Important Safety Information

!

WARNING

Read the following information to avoid possible exposure to microwave radiation:

The basic design of the Amana Microwave Oven makes it an inherently safe device to both use and service.

However, there are some precautions which should be followed when servicing the Radarange to maintain this safety. These are as follows:

1.

Always operate the unit from an adequately grounded outlet. Do not operate on a two-wire extension cord.

8.

Do not for any reason defeat the interlock switches there is not valid reason for this action at any time; nor will it be condoned by Amana.

2.

Before servicing the unit (if unit is operable) perform the microwave leakage test.

9.

IMPORTANT: Before returning a unit to a customer, be sure to check for proper switch interlock action.

3.

The oven should never be operated if the door does not fit properly against the seal, the hinges or hinge bearings are damaged or broken; the choke is damaged, (pieces missing, etc.); or any other visible damage can be noted. Check the choke area to ensure that this area is clean and free of all foreign matter.

10. The Amana Microwave Oven should never be operated with any components removed and/or bypassed or when any of the safety interlocks are found to be defective, or when any of the seal surfaces are defective, missing, or damaged.

4.

If the oven operates with the door open and produces microwave energy, take the following steps:

A. Tell the user not to operate the oven.

B. Contact Maytag Amana Manufacturing immediately.

11. All Amana microwave ovens meet all requirements of the radiation control for Health and Safety Act of

1968. Due to measurement uncertainties, the maximum leakage for the field will be 4mw/cm 2.

5.

Always have the oven disconnected when the outer case is removed except when making the "live" tests called for in the Service Manual. Do not reach into the equipment area while the unit is energized. Make all connections for the test and check them for tightness before plugging the cord into the outlet.

12. To ensure that the unit does not emit excessive microwave leakage and to meet the Department of Health and Human Services guidelines, check the oven for microwave leakage using the models

Narda 8110B, Holaday HI-1501, HI-1510, or

HI-1710 leakage monitor as outlined in the instruction. The maximum leakage level allowed when following those instructions is 4mw/cm 2 .

6.

Always ground the capacitors on the magnetron filter box with an insulated-handle screwdriver before working in the high voltage area of the equipment compartment. Some types of failures will leave a charge in these capacitors and the discharge could cause a reflex action which could make you injure yourself.

13. If servicer encounters an emission reading over

4mw/cm 2 , the servicer is to cease repair and contact the Maytag Service Department immediately for further direction. Maytag

Manufacturing will contact the proper Government

Agency upon verification of the test results.

7.

Always remember that in the area of the transformer there is HIGH VOLTAGE. When the unit is operating keep this area clear and free of anything which could possibly cause an arc or ground, etc.



Recognize this symbol as a SAFETY message

!

WARNING

When using electrical equipment, basic safety precautions should be followed to reduce the risk of burns, electrical shock, fire, or injury to persons.

1.

READ all instructions before using equipment.

2.

READ AND FOLLOW the specific

“PRECAUTIONS TO AVOID POSSIBLE

EXPOSURE TO EXCESSIVE MICROWAVE

ENERGY”.

3.

This equipment MUST BE GROUNDED. Connect only to properly GROUNDED outlet. See

“GROUNDING INSTRUCTIONS”.

4.

Install or locate this equipment ONLY in accordance with the installation instructions in this manual.

5.

Some products such as whole eggs and sealed containers, for example, closed glass jars may explode and SHOULD NOT be HEATED in this oven.

6.

Use this equipment ONLY for its intended use as described in this manual. Do not use corrosive chemicals or vapors in this equipment. This type of oven is specifically designed to heat or cook. It is not designed for industrial or laboratory use.

7.

As with any equipment, CLOSE SUPERVISION is necessary when used by CHILDREN.

8.

DO NOT operate this equipment if it has a damaged cord or plug, if it is not working properly, or if it has been damaged or dropped.

9.

This equipment, including power cord, must be serviced ONLY by qualified service personnel.

Special tools are required to service equipment.

Contact nearest authorized service facility for examination, repair, or adjustment.

10. DO NOT cover or block filter or other openings on equipment.

11. DO NOT store this equipment outdoors. DO

NOT use this product near water, for example, near a kitchen sink, in a wet basement, or near a swimming pool, and the like.

12. DO NOT immerse cord or plug in water.

13. Keep cord AWAY from HEATED surfaces.

14. DO NOT let cord hang over edge of table or counter.

15. See door cleaning instructions in “Care and

Cleaning” section.

16. For commercial use only.

!

CAUTION

To reduce risk of fire in the oven cavity: a.

DO NOT overcook food. Carefully attend equipment if paper, plastic, or other combustible materials are placed inside the oven to facilitate cooking.

b.

Remove wire twist-ties from paper or plastic bags before placing bag in oven.

c.

KEEP oven DOOR CLOSED, turn oven off, and disconnect the power cord, or shut off power at the fuse or circuit breaker panel, if materials inside the oven should ignite. Fire may spread if door is opened.

d.

DO NOT use the cavity for storage. DO NOT leave paper products, cooking utensils, or food in oven.

SAVE THESE INSTRUCTIONS

16023053 Rev. 0 ©2004 Maytag Appliances Company 5

6


!

CAUTION

To avoid risk of personal injury or property damage, observe the following:

1.

Briskly stir or pour liquids before heating with microwave energy to prevent spontaneous boiling or eruption. Do not overheat. If air is not mixed into a liquid, liquid can erupt in oven or after removal from oven.

7.

Do not use regular cooking thermometers in oven.

Most cooking thermometers contain mercury and may cause an electrical arc, malfunction, or damage to oven.

8.

Do not heat baby bottles in oven.

2.

Do not deep fat fry in oven. Fat could overheat and be hazardous to handle.

9.

Do not use metal utensils in oven.

3.

Do not cook or reheat eggs in shell or with an unbroken yolk using microwave energy. Pressure may build up and erupt. Pierce yolk with fork or knife before cooking.

10. Never use paper, plastic, or other combustible materials that are not intended for cooking.

11. When cooking with paper, plastic, or other combustible materials, follow manufacturer's recommendations on product use.

4.

Pierce skin of potatoes, tomatoes, and similar foods before cooking with microwave energy.

When skin is pierced, steam escapes evenly.

5.

Do not operate equipment without load or food in oven cavity.

12. Do not use paper towels which contain nylon

or other synthetic fibers. Heated synthetics could melt and cause paper to ignite.

6.

Use only popcorn in packages designed and labeled for microwave use. Popping time varies depending on oven wattage. Do not continue to heat after popping has stopped. Popcorn will scorch or burn. Do not leave oven unattended.

13. Do not heat sealed containers or plastic bags in oven. Food or liquid could expand quickly and cause container or bag to break. Pierce or open container or bag before heating.

14. To avoid pacemaker malfunction, consult physician or pacemaker manufacturer about effects of microwave energy on pacemaker.

PRECAUTIONS TO AVOID POSSIBLE EXPOSURE

TO EXCESSIVE MICROWAVE ENERGY

a.

DO NOT attempt to operate this oven with the door open since open-door operation can result in harmful exposure to microwave energy. It is important not to defeat or tamper with the safety interlocks.

c.

DO NOT operate the oven if it is damaged. It is particularly important that the oven door close properly and that there is no damage to the: (1) door (bent), (2) hinges and latches (broken or loosened), (3) door seals and sealing surfaces.

b. DO NOT place any object between the oven front face and the door or allow soil or cleaner residue to accumulate on sealing surfaces.

d.

The oven should NOT be adjusted or repaired by anyone except properly qualified service personnel.

SAVE THESE INSTRUCTIONS



!

WARNING

Precautions to be observed before and during servicing to avoid possible exposure to excessive microwave energy, or electrical shock disconnect power to oven.

• Do not operate or allow oven to be operated with door open.

• Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary:

• Interlock operation

• Proper door closing

• Seal and sealing surfaces (arcing, wear, and other damage)

• Damage to or loosening of hinges and latches

• Evidence of dropping or abuse

• Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, waveguide or transmission line, and cavity for proper alignment, integrity, and connections.

• Any failed or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced or adjusted by procedures described in this manual before oven is released to the consumer.

• Check microwave leakage to verify compliance with the federal performance standard should be performed on each oven prior to release to the consumer.

!

WARNING

To avoid risk of electrical shock, injury or death; make sure these grounding instructions are followed.

Grounding Instructions

!

WARNING

Do not remove grounding prong when installing grounded appliance in a home or business that does not have three wire grounding receptacle, under no condition is grounding prong to be cut off or removed.

It is the personal responsibility of the consumer to contact a qualified electrician and have properly grounded three prong wall receptacle installed in accordance with appropriate electrical codes.

!

WARNING

To avoid the risk of electrical shock or death, do not alter the plug.

!

WARNING

To avoid the risk of electrical shock or death, this equipment must be grounded.

This equipment MUST be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. This oven is equipped with a cord having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is properly installed and grounded.

Consult a qualified electrician or servicer if grounding instructions are not completely understood, or if doubt exists as to whether the equipment is properly grounded.

Do not use an extension cord. If the product power cord is too short, have a qualified electrician install a threeslot receptacle. This oven should be plugged into a separate 60 hertz circuit with the electrical rating as shown in the appropriate drawing. Models operate with a

120 supply voltage. When a microwave oven is on a circuit with other equipment, an increase in cooking times may be required and fuses can be blown.

NEMA 5-20R/5-20P

120V–20AMP

©2004 Maytag Appliances Company 16023053 Rev. 0

NEMA 5-15R/5-15P

120V–15AMP

7

8


Servicing of Grounded Products

The standard accepted color coding for grounding wires is GREEN or GREEN WITH YELLOW STRIPE. These ground leads are NOT to be used as current carrying conductors. It is extremely important that the technician replace any and all grounds prior to completion of the service call. Under no condition should ground wire be left off causing a potential hazard to technicians and consumer.

Explanation

Polarization–This means that the larger slot must be neutral and the small slot must be hot (live).

Mispolarized–The outlet is miswired so that the larger slot is hot (live) and the smaller slot is neutral.

Grounded–This means the round hole connection is connected to earth ground through a connection to the main power panel.

Ungrounded–The round hole connection is not complete to earth ground and/or the main power panel.

Wiring

A good service practice is never route wiring over terminals and/ or sharp edges. This applies to any wiring without regard to the circuit voltage. Wire installation material and thickness is designed and regulated for electrical spacing purpose only, but cannot always be relied upon because of possible cuts and/or abrasions, which can occur during servicing.

Test Procedures (2 Methods)

Method #1

Purchase and use a ground monitor which indicates a correctly or incorrectly wired outlet by instructions imprinted on the monitor body.

!

WARNING

To avoid risk of electrical shock, personal injury or death; verify the oven is properly grounded and polarized.

Method #2

Voltmeter - (Use scale over 125 Volts A.C.)

• Test A - "H" to "N" must indicate line voltage.

• Test B - "H" to "G" must indicate line voltage.

• Test C - "N" to "G" must indicate zero (0) volts.

If "N" to "G" indicates line voltage the outlet is improperly polarized.

Proper Grounding and Polarization of

120 Volts Wall Outlets

For the safety of our customers and the service technician ALL appliances have a three–prong power cord and MUST be connected to a properly polarized and grounded wall outlet.

This information was written for those who do not understand grounding and polarization of a wall outlet.

A 120 volt wall outlet must always be wired as shown below.

If "H" to "G" indicates zero (0) volts the outlet is not grounded.

Neutral (N) - This slot is the larger of the two and should be neutral (dead) with respect to ground.

H

Hot (H) - This slot is the smaller size and should always be hot

(live) with respect to neutral (N) and ground(G).

N

G

Ground (G) - The round hole connection is for the grounding circuit. Behind the cover plate a green wire should be connected to this terminal.

!

CAUTION

To avoid risk of electrical shock, personal injury or property damage; wiring changes or grounding of wall outlet are to be made only by a qualified electrician.

General Test Information

Most testing in the manual is conducted with an ohmmeter using a multiplier scale of X 10k (k–thousand ohms). When using this scale, it is important that your fingers do not touch the metal parts of the test probes.

To do so will give a false indication of the ohm reading.


General Information

Unpacking Equipment

• Inspect equipment for damage such as dents in door or dents inside oven cavity.

• Report any dents or breakage to source of purchase immediately. Do not attempt to use oven if damaged.

• Remove all materials from oven interior.

Placement of the Oven

• Do not install microwave next to or above source of heat, such as pizza oven or deep fat fryer. This could cause the microwave to operate improperly and could shorten the life of electrical components.

• Install microwave on a level countertop surface.

• Do not block or obstruct air filter. Allow access for cleaning.

• All air vents must be kept clear during cooking. If air vents are covered during operation the oven may overheat. In this case, a sensitive thermal safety device automatically turns the oven off. The oven will be inoperable until the oven has cooled sufficiently.

A

Radio Interference

Microwave oven operation may cause interference to radio, television, or similar equipment. Reduce or eliminate interference by doing the following:

• Clean the door and sealing surfaces of microwave oven according to instructions in “Care and Cleaning” section.

• Place radio, television, ect. as far as possible from the microwave oven.

• Use a properly installed antenna on radio, television, ect. to obtain stronger signal reception.

Model Identification

Complete registration card and promptly return. If registration card is missing:

• For Amana product call 1-866-426-2621 or visit the

Web Site at www.amanacommercial.com

• For product in Canada call 1-866-426-2621 or visit the

Web Sites at www.amanacommercial.com

When contacting provide product information located on rating plate. Record the following:

Model Number:

Manufacturing Number:

Serial or S/N Number:

Date of purchase:

___________________

___________________

___________________

___________________

Dealer’s name and address: ___________________

A

A

B

Side of

Control Panel

A–Allow at least 11 /

2

inches (3.81 cm) of clearance around top and sides of unit.

B–Allow at least 3 inches (7.62 cm) from door front to edge of countertop, to avoid accidental tipping of the unit.

Service

Keep a copy of sales receipt for future reference or in case warranty service is required. To locate an authorized servicer:

• For Amana product call 1-866-426-2621 or visit the

Web Site at www.amanacommercial.com

• For product in Canada call 1-866-426-2621 or visit the

Web Sites at www.amanacommercial.com

Warranty service must be performed by an authorized servicer. We also recommend contacting an authorized servicer, if service is required after warranty expires.


General Information

Microwave Oven Features

A

B

A—Window door screen

B—Spatter shields

C—Control panel (Electric or Dial)

D—Door open button

E—Safety door lock system

C

E

D

MicrowaveSpecifications

Power Source

Models LD10D2

LD10MP

LD10MPS

Amperage (Single Unit)

Frequency

15 A

Receptacle

Plug

Power cord

Yes

5 −15 R

5 −15 P

5 ft. (1.5 m)

Power Output

Normal microwave energy (IEC705) 1000 Watts

10

Power Consumption

Cook condition microwave

Cabinet

Width

Height

Depth

Oven Interior

Width

Height

Depth

Capacity

Weight

Crated

16023053 Rev. 0

1450 Watts

20 9/16 in (53.0 cm)

12 3/8 in (31.5 cm)

15 1/2 in (39.4 cm)

13 7/8 in (34.4 cm)

9 5/32 in (23.3 cm)

14 3/8 in (36.5 cm)

1.0 cu.ft. (28.3 l)

40 lbs (18 kg)

©2004 Maytag Appliances Company

Troubleshooting Procedures

When you get a complaint from customers, evaluate the complaint carefully. If the following symptoms apply, instruct the customer in the proper use of the microwave oven. This can eliminate an unnecessary service call.

!

CAUTION

• Verify proper grounding before checking for trouble.

• Be careful of the high voltage circuit.

• Discharge the high voltage capacitor.

• When checking the continuity of the switches or of the high voltage transformer, disconnect one lead wire from these parts and then check continuity with the AC plug removed. To do otherwise may result in a false reading or damage to your meter.

• Do not touch any part of the circuit on the controller, since static electric discharge may damage the control panel. Always touch yourself to ground while working on this panel to discharge any static charge built up in your body.

Condition

Microwave oven does not work.

Output power is too low.

Sparks occur.

Uneven cooking.

Cause

• Inserting multiple plugs into one outlet and using them at the sam e time (blown fuse or breaker).

• Microwave oven plug is not inserted tightly.

• Low AC input voltage.

• Food temperature is too low.

• Using metallic ware and allowing it to touch the oven wall.

• Ceramic ware trimmed in gold or silver is used.

Inconsistent food thickness, inconsistent fat or m oisture distribution within the food products.

Remedy

• Avoid using other electrical appliances when you use the m icrowave oven.

• Insert microwave oven plug securely.

• Use the microwave oven at adequate line voltage.

• This may not be a defect. It is possible that the food should be cooked for a longer time period.

• Do not use metallic ware for cooking.

• Do not use any type of cookware with m etallic trimming.

• Use plastic wrap or lid.

• Stir once or twice while cooking soup, cocoa, milk, etc.


Troubleshooting Procedures (Electronic Models)

Trouble 1: The following visual conditions indicate a probable failed control circuit.

1. Incomplete segments.

• Segment missing.

• Partial segment missing.

• Digit flickering (Note: Slight flickering is normal.)

2. Colon does not turn on or blink.

3. A distinct change in the brightness of one or more numbers in display.

4. One or more digits in the display are not lighting.

5. Display indicates a number different from one touched, for example, key in 5 and 3 appears in the display.

6. Specific numbers (for example 7 or 9) will not display when key pad is touched.

7. Display does not count down with time blinking or count up during operation.

8. Display obviously jumps in time while counting down.

9. Display counts down too fast while cooking.

10. Each indicator light does not turn on after setting cooking cycle.

11. Display time of day does not reappear when cooking is finshed.

Condition

No input can be programmed.

Check the connection between keypad and controller.

Check cannot be programmed.

Replace keypad and check operation.

Result

• Continuity

Cause

• Failed controller.

• No continuity • Loose connection.

• Everything works as

• Failed keypad.

specified.

• Still have trouble.

• Failed controller.

a number or figure different from one touched.

3. Random programming when touching other pads.

Remedy

• Replace controller.

• Repair connection.

• Replace keypad.

• Replace controller.

at some figure and can not accept any input.

12 16023053 Rev. 0 ©2004 Maytag Appliances Company

Troubleshooting Procedures (Dial and Electronic Models)

Oven does not operate at all, display window does not display any digits and no input is accepted.

Fuse blows.

Check continuity of monitor switch with door closed.

Continuity

No

Continuity

Malfunction of the monitor switch.

Replace the fuse, primary, secondary, monitor switches and controller.

Check continuity of primary switch with door opened.

Continuity

No

Continuity

Malfunction of primary switch.


NOTE: If replacing a switch, all switches must be replaced at the same time.

Fuse does not blow.

Check continuity of secondary switch with door opened.

Continuity

No

Continuity

Malfunction of secondary switch.


Disconnect one side of the wire lead connecting transformer to high voltage capacitor and operate the unit.

Check continuity of thermostat

(cavity and magnetron).

Normal

Fuse blows again.

No

Continuity

Continuity

Failed high voltage capacitor.

Failed high voltage transformer.

Failed thermostat.

Check continuity of power cord.


No

Continuity

16023053 Rev. 0

Failed power cord.

Replace high voltage capacitor.

Replace high voltage transformer.

Replace thermostat.

Replace power cord.

13

Troubleshooting Procedures (Electronic Models)

Display shows all digits programmed, but does not start cooking when the START pad is pressed.

Time does not count down after

START pad is pressed.

Check continuity of secondaryswitch with door closed.

No

Continuity

Malfunction of secondary switch.

Replace the secondary switch.

Continuity

Check connection between CN1 connector and c.ontroller.

Normal

Oven light or fan motor does not operate.

Check oven light.

Check fan motor.

Continuity

No

Continuity

Abnormal

Abnormal

Failed controller.

Loose connection.

Failed oven light.

Failed fan motor.

Replace controller.

Repair connection.

Replace oven light.

Replace fan motor.

Dial and Electronic Models

Oven operates with little or no heat.

Output performance is low.

Check the power supply voltage.

Lower than

90% of rated voltage.

Normal

Decrease in supply voltage under load.

Disconnect wire leads from relay RY2 and verify on and off times.

Abnormal

Normal

Failed controller.

14

Customer must contact local power company or qualified electrician.

Replace controller.

Measure the output power.

Abnormal

16023053 Rev. 0

Failed magnetron

Replace magnetron.


Troubleshooting Procedures (Dial and Electronic Models)

No microwave oscillation even when oven light and fan motor operate.

No microwave oscillation.

Disconnect wire leads from relay

RY2 and verify continuity of the relay.

No

Continuity

Continuity

Failed controller.

Replace controller.

Check high voltage transformer.

Abnormal

Normal

Failed high voltage transformer.

Replace high voltage transformer.

Check high voltage capacitor.

Abnormal

Normal

Failed high voltage capacitor.

Replace high voltage capacitor.

Check high voltage diode.

Abnormal

Normal

Failed high voltage diode.

Check magnetron.

Abnormal Failed magnetron.

Replace high voltage diode.

Replace magnetron.

Electronic Model Only

Operates at full power when programmed for lower power.

Disconnect wire leads from relay

RY2 and verify continuity of the relay.


Abnormal

16023053 Rev. 0

Failed controller.

Replace controller.

15

Component Testing Procedures

!

WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires it.

Illustration Component

Thermal Cutout

Test

Disconnect all wires from TCO.

Measure resistance across terminals.

Magnetron TCO ..........................................

Cavity TCO..................................................

Capacitor Discharge Capacitors

Remove wires from capacitor terminals and connect ohmmeter, set on highest resistance scale to terminals.

Also check between each terminal and capacitor case.

Diode Assembly Discharge Capacitors

Remove diode lead from capacitor and connect ohmmeter.

Reverse leads for second test.

Magnetron Discharge Capacitors

Remove wires from magnetron and connect ohmmeter to terminals. Also check between each terminal and ground.

Fan Motor Remove all wires from motor.

Measure resistance across coil ...................

Results

Open at 293

°F (145°C) and

closed at 185

°F (85°C)

Opens at 194

°F (90°C)

Between Terminals: Meter should momentarily deflect towards zero then return to over 5 M

Ω. IF no deflection occurs, or if continuous deflection occurs, replace capacitor.

Terminal to Case: Infinite resistance

Infinite resistance should be measured in one direction and 50K Ω or more in the opposite direction.

NOTE: Analog meter must contain a battery of 6 volts minimum.

Between Terminals: Less than 1

Ω

Each terminal to ground measures

Infinite resistance.

Note: This test is not conclusive. If oven does not heat and all other components test good replace the magnetron and re-test.

Approximately 50 - 150

Ω

Primary

Secondary

switch

Monitor switch

Primary switch

White

COM

NO

Red

NC

COM

NO

COM

Stirrer motor

Transformer

Interlock switches

Remove all wires from motor.

Measure resistance across coil ................... Approximately 2 – 4K Ω

Discharge Capacitors

Remove all wires from terminals.

Measure resistance from:

Primary ....................................................

Filament (white leads)..............................

Secondary (red lead) to transformer base plate.........................................................

Disconnect wires to switch

With door open measure resistance from:

COM to N.O.

⎯Secondary .........................

COM to N.C.

⎯Monitor ..............................

COM to N.O.

⎯Primary..............................

With door closed measure resistance from:

COM to N.O.

⎯Secondary .........................

COM to N.C.

⎯Monitor ..............................

COM to N.O.

⎯Primary..............................

<1 Ω

<1 Ω

Approximately 60 -90

Ω

Infinite

Ω

0

Ω

Infinite

Ω

0 Ω

Infinite Ω

0 Ω


Component Testing Procedures

!

WARNING


Illustration Component

Timer 6 minute

Test

Disconnect wire from terminals.

Measure resistance of the following terminals:

Terminal 3 to terminal 4 (timer motor) .....

Terminal 1 to terminal 2(timer switch) .....

Results

Approximately 11 K Ω

Timer OFF

⎯ infinite Ω

Timer ON

⎯ < 1 Ω

4 3 2 1

1

12

CN3

1

CN1

COOK OZ HEATER T/table OFF

10 PROGRAM PADS

1

TIME

ENTRY

2

HOLD

0 % 3

DEFROST

20 %

4

MEDIUM

50 % 5

MED- HI

70 % 6

QTY

2X 7

STOP 8

RESET

9

START

3 COOKING STAGES

0

8

Control

CN1

Pin 1 (black) to Pin 3 (white) .......................

RY2 (Cook Relay)

Unplug oven and remove wire leads from

RY2 terminals. Connect ohm-meter leads to terminals.

Plug oven into power supply......................

Initiate cook cycle......................................

NOTE: RY2 should cycle when using reduced power levels.

Touch panel

RY3 (Fan Relay)

Unplug oven and remove wire leads from

RY3 terminals. Connect ohm-meter leads to terminals.

Plug oven into power supply......................

Initiate cook cycle......................................

NOTE: Fan relay remains energized for 60 seconds following cook cycle.

Continuity is indicated as 100 Ω and below.

Each pad must be pressed to perform the following test.

1

2

3

4

5

6

7

8

9

10

11

Line voltage input to control transformer.

Infinite

Ω

< 1

Ω

Power levels for Relay 2

Level

20%

50%

70%

100%

Infinite Ω

< 1 Ω

Pad

1

2

3

4

5

6

7

8

9

0

Hold

Defrost

Medium

MED-HI

Time Entry

Stop/Reset

Start

On for:

3 sec

6 sec

9 sec

12 sec

Trace

2 & 8

3 & 8

4 & 8

5 & 8

6 & 8

7 & 8

1 & 9

2 & 9

3 & 9

1 & 8

1 & 10

2 & 10

3 & 10

4 & 10

5 & 10

6 & 10

7 & 10

Off for:

9 sec

6 sec

3 sec

0 sec

Measurement

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity


Microwave Power Test Procedures

!

WARNING


Power Test (Traditional 1 Liter Test)

Test equipment required is Amana power test kit R0157397 (Fahrenheit), or Menumaster power test kit M95D5

(Celsius).

1. Fill the plastic container to the bottom of the 1000 ml. line with cool tap water.

2. Using the thermometer; Fahrenheit or Celsius, stir the water, measure and record the water temperature.

Initial water temperature should be approximately 60

°F.

3. Place container on the center of the oven shelf and heat the water for 63 seconds.

NOTE: Use a watch second hand, not the oven timer.

4. Stir the water, measure and record the temperature of the water after heating time is complete.

5. Subtract the starting water temperature (Step 2), from the ending water temperature (Step 4) to obtain the temperature rise.

6. See the Temperature Chart provided below.

NOTE: Always perform power test three times for accuracy, changing the water after each test is performed.

NOTE: Variation or errors in the test procedure will cause a variance in the temperature rise indication. Additional power tests should be made if temperature rise appears marginal.

NOTE: Low line voltage may cause lower power output (temperature rise).

Temperature Chart

SIXTY −THREE SECONDS run time chart for units less than 1550 Watts cooking power

∆T Cooking ∆T Cooking ∆T Cooking ∆T Cooking

(°F) Power Output (°F) Power Output (°C) Power Output (°C) Power Output

12 464

13 504

14 542

15 581

16 620

17 659

18 697

19 736

20 775

27

28

29

30

31

32

33

34

35

1046

1085

1124

1162

1201

1240

1279

1317

1359

7 490

8 560

9 630

10 700

11 770

12 840

13 910

14 980

15

16

17

18

19

20

21

1050

1120

1190

1260

1330

1400

1470

21 814

22 852

23 891

24 930

25 969

26 1007

36

37

38

39

40

1395

1434

1472

1511

1550


Microwave Leakage Testing Procedures

!

WARNING


Measurement With the Outer Panel

Removed

!

WARNING

Check for radiation leakage after servicing. Should the leakage be more than 4mW/cm 2 inform Maytag immediately. After repairing or replacing any radiation safety device, keep a written record for future reference, as required by D.H.H.S. and

HEW regulations. This requirement must be strictly observed. In addition, the leakage reading must be recorded on the service repair ticket while in the customer’s home.

!

DANGER

Avoid contacting any high voltage components.

Whenever you replace the magnetron, measure for radiation leakage before the outer panel is installed and after all necessary components are replaced or adjusted. Special care should be taken in measuring around the magnetron.

Equipment

• Electromagnetic radiation monitor

• 600 cc glass beaker

Procedure For Measuring Radiation

Leakage

Note before measuring -

• Do not exceed meter full scale deflection. Leak monitor should initially be set to the highest scale.

• To prevent false readings the test probe should be held by the grip portion of the handle only.

• The scan speed is equal to one inch per antenna revolution or one inch per second if antenna speed is unknown.

• Areas to be checked are all door seal areas and any venting parts.

• Leakage with the outer panel removed

...4mW/cm 2 or less.

• Leakage for fully assembled oven with door normally closed ...4mW/cm 2 or less.

• Leakage for a fully assembly oven (before the latch switch (primary) is interrupted) while pulling the door ... 4mW/cm 2 or less.

Measurement With a Fully Assembled

Oven

After all components including the outer panel are fully assembled, measure for radiation leakage around the door periphery, the door viewing window, the exhaust opening, and air inlet openings.

Record Keeping and Notification After

Measurement

1. After any adjustment or repair to a microwave oven, a leakage reading must be taken. Record this leakage reading on the repair ticket even if it is zero.

2. A copy of the repair ticket and the microwave leakage reading should be kept by the repair facility.

1. Pour 275 cc ±15 cc (9 oz ±1/2 oz) of 20°C ± 5°C

(68°F ± 9°F) water in a beaker which is graduated to 600 cc and place the beaker in the center of oven.

2. Set the radiation monitor to 2450 MHz and use it following the manufacturer’s recommended test procedure to assure correct results.

3. While measuring the leakage, always use the two inch (5 cm) spacer supplied with the probe.

4. Press the start pad or turn on the timer and with the magnetron oscillating, measure the leakage by holding the probe perpendicular to the surface being measured.


Disassembly Procedures

!

WARNING

High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle.

It is neither necessary or advisable to attempt measurement of the high voltage.

Before touching any oven components or wiring, always unplug the oven from its power source and discharge capacitor.

To avoid the risk of electrical shock, personal injury or death, disconnect power to oven and discharge capacitors before following any disassembly procedure.

Disconnecting Wire Terminals

All wire terminals are locking-type terminals.

Proceed as follows to disconnect wire terminals:

Insulated terminals:

Grasp insulator pod and pull back.

DO NOT PULL ON WIRE.

1 Grasp

Wire

Insulator

Pod

2 Pull

Non-insulated terminals:

Use a small blade screwdriver to depress locking-tab and pull on terminal.

DO NOT PULL ON WIRE.

1 Release locking-tab

Wire

Door Assembly

!

CAUTION

A microwave leakage test must be performed anytime a door assembly is removed, replaced, disassembled, or adjusted for any reason.

Door Removal

1. Disconnect power to oven.

2. Open oven door, remove top hinge cap, and slowly lift door to disengage the hinge pins at top and bottom.

Top hinge cap

2 Pull

Outer Case


2. Remove screws securing outer case to unit.

3. Slide outer case towards rear of unit.

4. Reassemble in reverse order.

3. To re-install door, place bottom pin into slot first, then align top pin.

4. Replace top hinge cap.



!

WARNING


!

CAUTION

A microwave leakage test must be performed anytime a door assembly is removed, replaced, disassembly, or adjusted for any reason.

NOTE: When disassembling door, use caution to prevent deformation of slats on door frame/ choke assembly.

Door Disassembly


2. Remove oven door, (see "Door Removal").

3. Begin at the bottom of the door near hinge, insert flat blade screwdriver between choke cover and outer door panel. Gently pry upward on choke cover to release tabs. Work in clockwise direction to remove choke cover.

!

CAUTION

To avoid property damage, care must be taken when prying choke cover from oven door.

Control Panel Removal

1. Disconnect power to oven and remove outer case,

(see "Outer Case" procedure).

2. Disconnect and label wires from controller/timer.

3. Open oven door.

4. Remove screw securing top of control panel to cavity. Lift control panel up and out to release bottom tabs.

4. Slide latch assembly upward and pull away from door frame to release tabs from frame.

5. Disconnect latch spring from door frame.

6. Begin at hinge side of door near bottom, insert flat blade screwdriver between door frame/choke assembly and outer door panel. Gently pry outer door panel away from door frame to release tabs.

Work in clockwise direction to remove door frame.


Outer door panel

Choke

cover

Slats

Top hinge

cap


NOTE: Be sure to re-install ground wire when securing control panel to cavity.

Spring

Latch assembly

Door frame/ choke assembly



!

WARNING

Controller Removal (Electronic Models)



2. Remove control panel, (see "Control Panel" section).

3. Disconnect keypad ribbon connector .

NOTE: Caution should be used when removing ribbon from connector. Ribbon cable has two holes to align and lock ribbon to connector.

4. Remove screws securing controller to control panel assembly.

Control panel

Controller

Key pad


Timer Removal (Dial Models)

1. Disconnect power to oven and remove outer case (see

"Outer Case" procedure).


3. Remove screws securing timer to control panel.

4. Remove knob from timer.


Control panel

Knob

Timer motor

Release lever

Tabs

Button spring

Door release button

Button spring

Door release button

Release lever


NOTE: Do not flex controller.

Key Pad Removal



2. Remove control panel, (see "Control Panel Removal" section).

3. Disconnect ribbon connector.

4. Peel off failed key pad from control panel.


All Models

Door Release Lever / Release Button / Spring

1. Disconnect power to oven and remove outer case


2. Carefully pry tab on control panel to disengage release lever from control panel.

3. Push (4) tabs on door release button and remove button from control panel.

4. Remove spring from door release button.




!

WARNING


Interlock Switches

Primary switch is operated by bottom latch arm.

Interlock Switch Removal




3. Test interlock switches before removing, (see testing procedures).

4. Disconnect and label wire connections.

5. Remove switches by carefully releasing locking tabs on switch bracket and tilting switches to remove from switch bracket.

Secondary

switch

Monitor switch

Locking

Tab

Locking

Tab

Adjusting Interlocks

The interlock monitor, primary, and secondary switches act as a final safety switch, protecting the operator from microwave energy. After adjusting the interlock switch assembly, verify wires are correctly connected.

For door fit and switch operation, switch bracket is adjustable.



2. Loosen switch bracket mounting screws.

3. Close oven door, move switch bracket toward rear of oven until door gap is less than 1 /

64

–inch (0.5 mm).

4. Hold switch bracket securely for proper switch operation and door fit, retighten screws.

5. Open oven door slowly, watching the switches. Verify switches release in the following order.

• Primary interlock switch

• Secondary interlock switch

• Interlock monitor switch

NOTE: Adjust the switch bracket until all switches operate in proper sequence.

6. Close the oven door slowly, watching the switches.

Verify switches activate in the following order.

• Interlock monitor switch

• Secondary interlock switch

• Primary interlock switch

7. When proper switch sequence has been achieved, tighten the switch bracket securely.

!

CAUTION

A microwave leakage test must be preformed anytime a door assembly is removed, replaced, disassembled, or adjustment of switch bracket is made.

Primary switch

NOTE: After repairing the door or the interlock system, it is necessary to check the switch continuity before operating the oven.

!

Locking

Tab

CAUTION

Before replacing a blown monitor fuse, test the primary interlock switch, secondary interlock switch, monitor switch, and power relay contacts for proper operation. If the monitor fuse is blown by a failed switch operation, all switches and controller must be replaced.

High Voltage Capacitor

High voltage capacitor should always be discharged by shorting a terminal to a chassis ground. The capacitor has a internal "shunt" resistor, but the mechanical discharge should always be performed to avoid personal injury.

High Voltage Capacitor Removal



2. Discharge high voltage capacitor.

3. Remove and label wire leads from capacitor terminals.

4. Push the end of capacitor straps towards rear of oven to release strap from fan shroud.

5. Slide capacitor out of slots and remove capacitor.




!

WARNING

Diode



2. Discharge high voltage capacitor, (see "High Voltage

Capacitor" section).

3. Disconnect diode from high voltage capacitor and remove screw securing diode to ground.


Transformer





3. Disconnect and label wire leads from transformer.

4. Remove screws securing transformer and remove.



Magnetron

Magnetron is mounted on the side of the cavity.


(see "Outer Case" section).



3. Remove filter assembly from magnetron terminals.

4. Remove air duct.

5. Remove screws securing magnetron to the wave guide.

Waveguide

R.F.

Gasket

Fuse Block / Filter Assembly



2. Disconnect and label wires.

3. Carefully lift rear of fuse block assembly to release assembly from locating pin.

4. Slide fuse block assembly towards front of oven to remove.


Fuse

Fuse Removal

Fuse is located on the noise filter board.



2. Remove and replace fuse, reassemble in reverse order.

!

CAUTION

Before replacing a blown monitor fuse, test the primary interlock switch, secondary interlock switch, monitor switch, and power relay contacts for proper operation. If the monitor fuse is blown by a failed switch operation, all switches and controller must be replaced.

24


NOTE: When replacing magnetron, make sure gasket is in correct position and in good condition.

!

CAUTION

During replacement of magnetron, be certain the R.F.

anode gasket is in place around the anode stud.

!

Screws

Magnetron

WARNING

A microwave leakage test must be performed anytime a magnetron assembly is removed, replaced, disassembled, or adjusted for any reason.

Fan Motor

1. Disconnect power to oven and remove outer case




3. Remove rear air guide.

4. Remove screws securing diode to back panel.

5. Disconnect and label wires to high voltage capacitor.

6. Remove screws securing fan shroud to back panel and remove fan shroud from cavity.



!

WARNING

7. Disconnect wires from fan motor terminals.

8. Carefully note fan blade direction and placement on motor shaft.

9. Pull fan blade from motor shaft.

10.Remove screws securing motor to shroud and remove motor.


Rear air guide


Antenna

1. Open oven door to gain access to oven tray.

2. Using suction cup tool (59001235). Remove oven tray, by placing suction cup on oven tray and raising oven tray and removing it from the oven cavity.

3. Remove center portion of plastic insert from plastic rivet.

4. Lift upward on antenna to remove.


NOTE: When replacing antenna push outer portion of plastic rivet flush with the bottom of new antenna.

Place new antenna onto stirrer shaft, align rivet holes and push rivet into place. Once rivet is in place inner insert into rivet.

Fan shroud

Stirrer Motor


2. Place oven on it's back.

Blade

Motor

Cavity Thermostat

The cavity thermostat is located on top left side of cavity.

Thermostat is a non–resettable thermostat.





3. Carefully bend one tab to release thermostat.

4. Disconnect wires from oven thermostat and replace thermostat.


3. Remove bottom plate cover, by cutting metal tabs

NOTE: When reinstalling plate cover use screw provided.

4. Disconnect wires from motor terminals.

5. Remove screws securing motor to oven cavity.

Light Socket / Bulb Assembly



2. Disconnect wire terminal plug.

3. Carefully bend one tab to release socket.

4. Remove light socket / bulb assembly.

5. Replace and reassemble in reverse order.

Wire leads

Stirrer motor

6. Replace and reassemble in reverse order.


Wiring Diagram and Schematic

!

WARNING


120 VAC

60 Hz

Fuse 20 Amp

Noise

Filter

Oven

TCO

Schematic

Condition:

Door Open

Interlock

Switch

Schematic

Door open

Primary C

Secondary C

Monitor C

NO

NO

NC

Magnetron

TCO

Interlock

Switch

(Primary)

Timer

Switch

Interlock

Switch

(Secondary)

Timer Motor

Stirrer Motor

Fan Motor

Oven Light

Rectifier

Monitor

Switch

Power Transformer

Capacitor

Choke

Filter

Magnetron

26

LD10D2



!

WARNING


CHOK l) ptiona (o ER ILT E F

H

OR IT

SWITC

MON


LD10D2

16023053 Rev. 0 27


!

WARNING


120 VAC

60 Hz Schematic

Condition:

Door Open

Interlock

Switch

Schematic

Door open

Primary C

Secondary C

Monitor C

NO

NO

NC

Fuse 20 Amp

Noise

Filter

Oven

TCO

Magnetron

TCO

Interlock

Switch

(Primary)

Control transformer

1 3

Controller

RY1

RY2

RY3

7 8

Interlock

Switch

(Secondary)

Fan Motor

Stirrer Motor

5

Oven Light

Rectifier

Monitor

Switch

Power Transformer

Capacitor

Choke

Filter

Magnetron

28

LD10MP and LD10MPS



!

WARNING


nal) OK CH N RO ET GN MA ptio (o ER ILT E F

E OD . DI H.V

CH WIT

R TO MO

OR S NIT MO

RER IR ST

AMP L OVEN

TOR MO FAN


LD10MP and LD10MPS

16023053 Rev. 0 29


!

WARNING


This page intentionally left blank.


Appendix A

©2004 Maytag Appliances Company 16023053 Rev. 0 A–1

Operation—LD10MP and LD10MPS

Control Panel

Display

Some items in display can be seen but will not glow.

Pads

TIME ENTRY

Pads 1-0

COOK OZ HEA TER T/table OFF

10 PROGRAM PADS

1

TIME

ENTRY

2

HOLD

0 % 3

DEFROST

20 % 4

MEDIUM

50 % 5

MED- HI

70 % 6

QTY

2X 7

STOP 8

RESET

9

START

3 COOKING STAGES

0

HOLD 0%

DEFROST 20%

MEDUIM 50%,

MED-HI 70%

STOP/RESET

START

QTY 2X

A–2

COOK OZ HEATER T/ta ble OFF

Use to enter heating time without changing preprogrammed number pads.

Use to begin heating with preprogrammed times and power levels or to enter times for “Manual Time

Entry” cooking.

Use to select power level. Oven can heat at full or reduced power. If oven power level is set to 0% oven does not heat for programmed time. If no power level is selected, oven operates at 100% power.

Use to exit programming mode and stop cooking during cooking cycle.

Use to start “Manual Time Entry” program or restart interrupted cooking cycle. Use to advance to next user option. Use to save times and power levels when programming pads.

Use to automatically increase the programmed time for double quantities.



Cooking Displays

-- --- --

READY

COOK OZ HEATER T/table OFF

Programming Displays

PROGRAM

OP 11

Shows when power is connected to oven. Open and close door to clear.

READY shows when oven control will accept entries.

Appears after oven door is opened and closed.

88:88 shows heating time. When more than 1 heating stage is programmed, total time for all stages displays.

COOK shows when oven is operating.

20 indicates the microwave power level used. If power level does not show, oven is heating at 100% power.

Indicates programming mode. See “Programming” section of manual for programming procedure.

Indicates programming user options mode. See “User

Options” section of manual for programming procedure.

A–3 ©2004 Maytag Appliances Company 16023053 Rev. 0


To avoid damaging oven, only heat in microwave oven when turntable is in place.

!

!

CAUTION

CAUTION

To avoid fire, do not dry newspapers or clothes in microwave oven.

Interrupting Operation

• Open oven door to interrupt operation. Oven fan continues to operate. Close door and press

START pad to resume oven operation.

• Press STOP/RESET pad to interrupt operation.

Display continues to show countdown time. Close oven door and press the START pad to resume oven operation and countdown timing.

Canceling Mistakes

• If oven is operating, press STOP/RESET pad once to stop oven, then again to clear display.

• If oven door is open and time shows in display, close oven door and press STOP/RESET pad to clear display.

Operating Preprogrammed Pads

Oven has 10 – 20 preprogrammed number pads.

Instructions are written for factory programmed ovens.

Ovens that are reprogrammed can respond differently than described below.

1. Open oven door, place food in oven, and close oven door.

• If pad is not pressed within 30 seconds, open and close oven door again.

2. Press desired number pad.

• Oven operates and time counts down.

3. Oven stops heating and oven signal sounds when heating timing elapses.

Operating QTY 2X Pads

1. Press QTY 2X pad.


Example: Press QTY 2X pad then pad 1 = 18 sec.

NOTE: This feature automatically sets the time preprogrammed for multiple cooking items.

The pad times are not representive of the preprogrammed double digit option.

Preprogrammed Times and Cook Level

All preprogrammed pads are set at full power.

Option: Single Digit

9

0

5

6

7

8

1

2

3

4

Pads Heating

Times

10 sec.

20 sec.

30 sec.

45 sec.

1 min.

1:30 min.

2 min.

3 min.

4 min.

5 min.

O ption: D o uble D ig it

07

08

09

10

P ads H eating P ads H e atin g

T im es T im es

01

02

10 sec.

20 sec.

11

12

20 sec.

40 sec.

03

04

05

06

30 sec.

45 sec.

1 m in.

13

14

15

1:30 m in. 16

1 m in.

1:30 m in.

2 m in.

3 m in.

2 m in.

3 m in.

4 m in.

5 m in.

17

18

19

20

4 m in.

6 m in.

8 m in.

10 m in.

Manual Time Entry

Manual Time Entry feature allows the operator to enter time and power levels, and heat without changing the preprogrammed pads.

1. Open oven door, place food in oven, and close door.

• Display shows “READY”.

• If pad is not pressed within 30 seconds, open and close oven door again.

2. Press TIME ENTRY pad.

• Display shows “00:00”.

3. Press number pads to enter desired cooking time.

• For example, to heat for 2 minutes 30 seconds, press 2, 3, and 0 pads.

A–4 16023053 Rev. 0 ©2004 Maytag Appliances Company


4. Press desired power level pad to change power level.

• If a power level pad is not pressed, oven defaults to

100% power.

• For example, pressing MEDIUM 50% pad sets oven to 50% power.

• Display shows current power level if other than 100 percent power.

5. Press START pad.

• Oven operates and time counts down.

6. Oven stops heating and oven signal sounds when heating timing elapses.

Programming

Preprogrammed Number Pads

Oven has 10 preprogrammed number pads. Follow instructions below to program heating times and power levels for customized cooking.

1. Open oven door.

• If door is closed or RESET pad is pressed before finishing programming sequence, oven exits programming mode.

2. Press and hold pad 1 for approximately 5 seconds.

• After 5 seconds, signal sounds. Display shows

“PROGRAM” indicating program mode.


• Display shows heating time, “COOK LEVEL” and power level if other than 100 % power.





100% power.


• Display shows current power level if other than

100 % power.

6. Press START pad to save new heating time and power level in oven memory.

• Repeat step 3-6 to program additional pads.

7. Press RESET pad or close oven door to exit programming mode.

Multiple Heating Stages

Follow instructions below to program oven to perform 3 consecutive heating cycles without interruption.

1. Open oven door.


2. Press pad 1 for approximately 5 seconds.


“PROGRAM” indicating program mode.


• Display shows heating time and preprogrammed number.





100% power.


• Display shows current power level if other than

100 % power.

6. Press TIME ENTRY pad.

• Display briefly shows "STAGE 2" . Then cook time and power level for stage show in display.

• Repeat steps 5-6 to create additional stages.

7. Press START pad to save new heating time and power level in oven memory.

8. Press RESET pad or close oven door to exit programming mode.



User Options

Follow the instructions below to customized the microwave oven’s operation. End-of-cycle signal, maximum heating time and other options can be changed to meeting your cooking needs.

1. Open oven door.


2. Press and hold pad 2 for approximately 5 seconds.


“OPTION”.

3. Press number pad that matches desired option.

• “OP” represents optional program mode, first number represents option number and second number represents functions currently selected for option.

4. Press number pad to change option setting.

5. Press START pad to save changes.

• Repeat steps 3-5 to change additional options.

6. Press STOP/RESET pad or close oven door to exit programming mode.

Numbered Pads

1

End of Cycle Beep

2

Speaker Volume

3

Key Beep

4

Keyboard Enable

Window

5

Add Time during

Heating

6

Reset Door Open

Display

OP:10

OP:11

OP:12

OP:20

OP:21

OP:22

OP:23

OP:30

OP:31

OP:40

OP:41

OP:50

OP:51

OP:60

OP:61

7

Maximum Heating

Time

OP:70

OP:71

8

Manual Operation

9

Double Digit

OP:80

OP:81

OP:90

OP:91

Options ( ) = Factory Setting

3 second continuous beep

(Continuous Beep until door is opened)

5 beeps bursts until door is opened

Eliminates beep

Sets volume to low; 60-70dB

Sets volume to medium; 70-80dB

(Sets volume to high; 80-90dB)

Prevents signal when pad is pressed.

(Allows signal when pad is pressed.)

(30 seconds after oven door is opened, keyboard disabled)

2 minutes after oven door is opened, keyboard disabled

(Prevents adding heating time while oven is heating.)

Allows adding heating time while oven is heating.

(Cancels heating time count down after door is opened during cycle.)

Allows oven to resume heating time countdown after door is opened during cycle.

Allows 10 minutes of heating time. (If more than 10 min. is programmed in this setting, unit will beep 3 times and no programming will occur.)

(Allows 60 minutes of heating time.)

Allows use of preprogrammed pads only.

(Allows use of manual time entry and preprogrammed pads.)

(Allows use of double digit only.)

Allows use of single digit only.


Cooking Guidelines

The Amana Microwave Oven can make your job easier.

You’ll cook ahead and pre-portion more. You’ll also spend less time preparing special-order dishes.

To be sure of consistently good results, remember a few simple guidelines.

How Microwave Ovens Heat Food

All food and liquid molecules have positive and negative particles which are in constant, but slow, motion.

(Positive and negatives attract and repel each other like magnets.) In microwave cooking this molecular action is then accelerated. The instant microwaves bombard food which agitate the molecules. Agitation causes friction as molecules rub and bump into each other at an increased rate. Friction results in heat that cooks food and boils water.

Once the microwaves stop, this friction action continues by itself, eventually tapering off and returning to normal molecular action.

Microwaves penetrate food to a depth of ¾" to 1½". As cooking begins, heat is spread by conduction to the interior portion of the food just as in conventional cooking methods.

The density of foods can greatly affect the amount of cooking time. Porous foods, such as breads, cakes or pastries, will heat much more quickly than dense meats of the same size. Porous foods absorb microwaves quickly throughout. Meats absorb microwaves mostly at the exterior surface, and the interior is heated by conduction, increasing the cooking time. Meats can be cooked in a sauce, if desired. Due to the moisture content, a sauce will heat rapidly. The heat will transfer to the meat, so the meat will heat faster due to heat by conduction as well as by microwaves.

The starting temperature of foods affects the amount of cooking time. Each temperature degree that the food item is to raise must be supplied with a definite amount of energy. Lower initial starting temperatures require more energy and more time to cook. Therefore, refrigerator temperature foods require a longer cooking time than room temperature foods. Foods already slightly warm will heat very quickly in the oven.

The moisture content of foods affects the amount of cooking time. The higher the moisture content is in a food the longer the amount of cooking time.

Food Variables

Microwave cooking can be directly affected by different food variables.

The fat and sugar content of foods affects the amount of cooking time. Foods containing high fat and sugar levels heat very quickly and may reach much higher temperatures than foods having low fat and sugar levels.

Foods having lower fat and sugar levels require longer cooking times.

The shape of foods can greatly affect the amount of cooking time. Foods that are flat and thin heat faster than foods which are chunky. For example, a casserole will cook faster in a flat dish, rather than if heaped in a small dish. Foods cut into small pieces will cook faster than large-shaped foods. Pieces should be of a uniform size and shape for more uniform cooking, or the smaller pieces will cook faster. The greatest amount of heating takes place within ¾" of the food’s surface. The interior of large food items, or dense foods, is heated by the heat conducted from the outer food layer. The most uniform heating occurs in flat, doughnut-shaped foods. For best results, cook foods together which have similar sizes and shapes.

The quantity or volume of a food can affect the amount of cooking time. As the volume of the food is increased, the time required to cook or heat the item increases almost proportionately. If twice the amount of food is placed in the oven, it will take almost twice as long to cook. To determine the time for larger quantities, multiply the individual serving time by the increased amount, then reduce the total heating time by about 20%.


The arrangement of food within a microwave oven cavity affects the way in which the food cooks. A “round” arrangement is best. Use round utensils whenever possible. Also, arrange foods such as baked potatoes in a circle, rather than in rows, for cooking. When only one food item is being cooked, place it in the center of the oven glass shelf for cooking.

Manipulation of Foods

Sometimes recipes suggest manipulating or moving food during cooking. There are several forms of manipulation:

Stirring is required less often in microwave cooking than in conventional cooking. In conventional cooking, you use a spoon to move food up from the bottom of a pan to evenly distribute the heat. In microwave cooking, you still stir to redistribute the heat within some foods, but you need to stir from the outside of a dish toward the inside or center. If a recipe states to stir once or twice during cooking, stir at approximately even intervals. For example, in a 12-minute cooking period, if a recipe states to stir twice, stir after 4 minutes of cooking and again, after 8 minutes of cooking. However, it is not necessary to be precise. Stir only when necessary. When using lower power levels or settings, less stirring is required.

Some examples of foods which may require stirring are puddings, some casseroles, some sauces, some soups, and some egg dishes. Some foods can’t be stirred.

These foods are rearranged or turned.

16023053 Rev. 0 A–7


Some foods can’t be stirred and should be repositioned

or rearranged during cooking. Some examples include baked potatoes, cupcakes (in custard cups), and chicken pieces. Rearranging allows for more even cooking of foods. Foods which are cooked, covered or which are cooked using lower power levels, usually require little rearranging.

There are actually two types of turning. Turning is done when foods cannot be stirred. Foods which are cooked, covered or which are cooked at lower power levels usually require little turning.

Turning foods over: Turning foods over is done to distribute heat. Meat and poultry are two types of foods which are sometimes “turned over.” Examples include roasts, turkeys and whole chickens. Small meat items such as poultry pieces may need to be turned over when in casseroles, or when in a browning skillet.

!

CAUTION

To avoid burns, use protective gloves or pads when removing dishes from oven. Some utensils become hot while cooking.

Utensil Check Test

Use the following test to check utensils for microwave safeness.

1. Place glass measuring cup of water next to empty dish to be tested in microwave oven.

2. Heat on full power for one minute.

3. Check temperature of dish and water.

• If dish remains cool and water is hot, dish is microwave safe.

• If dish is slightly warm, use for short term cooking.

• If dish is hot and water is cool, do not use. Dish remains cool if not absorbing microwaves and microwaves are being absorbed by water. Dish becomes hot if absorbing microwaves.

Microwave Utensils

Never use cooking containers or covers with any metal content. This includes all metal and enameled metal-core ware, foil, and metal-trimmed containers. Suitable heating containers include those made of paper products, glass, china, cloth, and wicker baskets.

Recommended

Glass/ceramic

Natural fiber cloth

Non-recycled paper

Plastic

Wood

Not Recommended

Aluminum foil

Grocery bags

Recycled paper

Lead crystal

Newspapers

Metal

Metallic trimmed china

Cooking Hints

Cover foods for faster, more even heating. Glass lids, plastic wrap, plate covers or other paper products may be used. Do not seal. Instead, allow for steamventing at all times.

Pierce pouches, plastic wrap covers and all foods with a thin skin or membrane, such as potatoes, squash, tomatoes, eggs, etc. This prevents an eruption in the oven and allows for expansion and/or the escape of steam.

Foods should be carefully arranged. For best results, arrange food such as vegetables or casserole-type items evenly around the edge of the plate with slightly less depth in the center. The edges of food items should not overlap or overhang the rim of the container. Cover meats with gravy or au jus and moisten all dry foods other than bread or pastry items.

Do not stack food or plated dishes in your oven.

Instead, when heating more than one serving or platters, all plates should be placed at the same level in the oven, with space between all containers.


Care and Cleaning

Part

Interior, Exterior, and Door

Discharge Air Vents

Intake

Control Panel

Discharge

HOLD

0 %

DEFROST

20 %

MEDIU M

50 %

MED- HI

70 %

TIME

ENTRY

STOP

RESET

START

C O OK O Z HEATER T/ta ble O FF

7

8

5

6

9

0

1

2

3

4

Splatter Shields 88 888 88

C OO K OZ H E AT ER T /ta ble OF F

Description

Clean microwave oven with mild detergent in warm water using soft sponge or cloth. Wring sponge or cloth to remove excess water before wiping equipment. If desired, boil a cup of water in microwave oven to loosen soil before cleaning.

Important:

• Do not use abrasive cleansers or cleaners containing ammonia.

These could damage finish.

• Never pour water into microwave oven bottom.

• Do not use water pressure type cleaning systems.

Check monthly for a buildup of cooking vapors along intake and discharge louvers on bottom and back of oven. Clean air vents with damp cloth to ensure proper airflow. Dry thoroughly.

Open oven door to deactivate oven timer. Clean with mild detergent in warm water using soft sponge or cloth.

Splatter shields can be cleaned in place or removed. Clean with mild detergent in warm water using soft sponge or cloth.

Splatter shields are held in place with (3) screws. If desired, remove splatter shields for cleaning by removing screws. Replace splatter shields before using oven.


Before Calling for Service

Record all inspections and repair for future reference.

!

WARNING

To avoid electrical shock which can cause severe personal injury or death, do not remove outer case at any time.

Only an authorized servicer should remove outer case.

Symptom

If oven does not operate:

If oven light does not work:

If oven operates intermittently:

Oven operates, but does not heat food:

Check

• Check fuse or circuit breaker.

• Confirm oven is plugged into dedicated circuit.

• Confirm oven is on grounded and polarized circuit.

Contact electrician to confirm.

• Oven light must be replaced by a servicer.

• Check air discharge area for obstructions.

• Place one cup cool water in oven. Heat for one minute. If water temperature does not rise, oven is operating incorrectly and a servicer should be called.

Any questions or to locate an authorized servicer, call 1-866-426-2621 inside U.S.A. 1-319-622-5511 outside U.S.A. If an automated telephone system is reached, select Commercial Microwave Ovens category. Warranty service must be performed by an authorized servicer. Amana also recommends contacting an authorized servicer if service is required after warranty expires.


Appendix B

©2004 Maytag Appliances Company 16023053 Rev. 0 B–1

Operation—LD10D2

Heating

!

CAUTION

To avoid damaging oven, only heat in microwave oven when turntable is in place.

!

CAUTION

To avoid fire, do not dry newspapers or clothes in microwave oven.

1. Open oven door, place food in oven, and close door.

2. Set timer knob to desired cooking time by turning clockwise.

• Turn timer knob slightly past and then back to desired cooking time for the most accurate time setting.

• Heating begins.

3. When time has elapsed, signal sounds, and oven shuts off.

Pausing or Stopping Operation

1. Open oven door.

• Oven stops heating.

• Timer maintains current time setting.

2. Heating resumes when door is closed.

3. Turn timer knob counterclockwise to "OFF" to clear all cooking time.

6 min.

LD10D2

1000 WATT

0

15 30 sec

45

1

15 sec

30

45

2

5

4

3

Return dial to "0" if food is removed before end of cook cycle

* Place food in oven

* Close door

* Set dial to desired time

* Remove food when bell rings

HEATING GUIDE

ITEM

1 Roll or Pastry

1 Hot Dog

1 Small Sandwich

1 Large Sandwich

1 Bag of Popcorn (3.5 oz)

1 Burrito (Frozen)

1 Cup of Soup (Stew)

1 Casserole

TIME

SETTING

7-10 sec

20-30 sec

30-35 sec

1.00-2.00

1.30-1.45

1.30-1.45

1.30-2.00

1.30-2.30

B–2 16023053 Rev. 0 ©2004 Maytag Appliances Company


The Amana Microwave Oven can make your job easier.

You’ll cook ahead and pre-portion more. You’ll also spend less time preparing special-order dishes.

To be sure of consistently good results, remember a few simple guidelines.

How Microwave Ovens Heat Food

All food and liquid molecules have positive and negative particles which are in constant, but slow, motion.

(Positive and negatives attract and repel each other like magnets.) In microwave cooking this molecular action is then accelerated. The instant microwaves bombard food which agitate the molecules. Agitation causes friction as molecules rub and bump into each other at a increased rate. Friction results in heat that cooks food and boils water.

Once the microwaves stop, this friction action continues by itself, eventually tapering off and returning to normal molecular action.

Microwaves penetrate food to a depth of ¾" to 1½". As cooking begins, heat is spread by conduction to the interior portion of the food just as in conventional cooking methods.

The density of foods can greatly affect the amount of cooking time. Porous foods, such as breads, cakes or pastries, will heat much more quickly than dense meats of the same size. Porous foods absorb microwaves quickly throughout. Meats absorb microwaves mostly at the exterior surface, and the interior is heated by conduction, increasing the cooking time. Meats can be cooked in a sauce, if desired. Due to the moisture content, a sauce will heat rapidly. The heat will transfer to the meat, so the meat will heat faster due to heat by conduction as well as by microwaves.

The starting temperature of foods affects the amount of cooking time. Each temperature degree that the food item is to raise must be supplied with a definite amount of energy. Lower initial starting temperatures require more energy and more time to cook. Therefore, refrigerator temperature foods require a longer cooking time than room temperature foods. Foods already slightly warm will heat very quickly in the oven.

The moisture content of foods affects the amount of cooking time. The higher the moisture content is in a food the longer the amount of cooking time.

The fat and sugar content of foods affects the amount of cooking time. Foods containing high fat and sugar levels heat very quickly and may reach much higher temperatures than foods having low fat and sugar levels.

Foods having lower fat and sugar levels require longer cooking times.

The arrangement of food within a microwave oven cavity affects the way in which the food cooks. A “round” arrangement is best. Use round utensils whenever possible. Also, arrange foods such as baked potatoes in a circle, rather than in rows, for cooking. When only one food item is being cooked, place it in the center of the oven glass shelf for cooking.

Food Variables

Microwave cooking can be directly affected by different food variables.

The shape of foods can greatly affect the amount of cooking time. Foods that are flat and thin heat faster than foods which are chunky. For example, a casserole will cook faster in a flat dish, rather than if heaped in a small dish. Foods cut into small pieces will cook faster than large-shaped foods. Pieces should be of a uniform size and shape for more uniform cooking, or the smaller pieces will cook faster. The greatest amount of heating takes place within ¾" of the food’s surface. The interior of large food items, or dense foods, is heated by the heat conducted from the outer food layer. The most uniform heating occurs in flat, doughnut-shaped foods. For best results, cook foods together which have similar sizes and shapes.

The quantity or volume of a food can affect the amount of cooking time. As the volume of the food is increased, the time required to cook or heat the item increases almost proportionately. If twice the amount of food is placed in the oven, it will take almost twice as long to cook. To determine the time for larger quantities, multiply the individual serving time by the increased amount, then reduce the total heating time by about 20%.


Manipulation of Foods

Sometimes recipes suggest manipulating or moving food during cooking. There are several forms of manipulation:

Stirring is required less often in microwave cooking than in conventional cooking. In conventional cooking, you use a spoon to move food up from the bottom of a pan to evenly distribute the heat. In microwave cooking, you still stir to redistribute the heat within some foods, but you need to stir from the outside of a dish toward the inside or center. If a recipe states to stir once or twice during cooking, stir at approximately even intervals. For example, in a 12-minute cooking period, if a recipe states to stir twice, stir after 4 minutes of cooking and again, after 8 minutes of cooking. However, it is not necessary to be precise. Stir only when necessary. When using lower power levels or settings, less stirring is required.

Some examples of foods which may require stirring are puddings, some casseroles, some sauces, some soups, and some egg dishes. Some foods can’t be stirred.

These foods are rearranged or turned.

16023053 Rev. 0 B–3


Some foods can’t be stirred and should be repositioned

or rearranged during cooking. Some examples include baked potatoes, cupcakes (in custard cups), and chicken pieces. Rearranging allows for more even cooking of foods. Foods which are cooked, covered or which are cooked using lower power levels, usually require little rearranging.

There are actually two types of turning. Turning is done when foods cannot be stirred. Foods which are cooked, covered or which are cooked at lower power levels usually require little turning.

Turning foods over: Turning foods over is done to distribute heat. Meat and poultry are two types of foods which are sometimes “turned over.” Examples include roasts, turkeys and whole chickens. Small meat items such as poultry pieces may need to be turned over when in casseroles, or when in a browning skillet.

!

CAUTION

To avoid burns, use protective gloves or pads when removing dishes from oven. Some utensils become hot while cooking.

Utensil Check Test

Use the following test to check utensils for microwave safeness.

1. Place glass measuring cup of water next to empty dish to be tested in microwave oven.

2. Heat on full power for one minute.

3. Check temperature of dish and water.

• If dish remains cool and water is hot, dish is microwave safe.

• If dish is slightly warm, use for short term cooking.

• If dish is hot and water is cool, do not use. Dish remains cool if not absorbing microwaves and microwaves are being absorbed by water. Dish becomes hot if absorbing microwaves.

Microwave Utensils

Never use cooking containers or covers with any metal content. This includes all metal and enameled metal-core ware, foil, and metal-trimmed containers. Suitable heating containers include those made of paper products, glass, china, cloth, and wicker baskets.

Recommended

Glass/ceramic

Natural fiber cloth

Non-recycled paper

Plastic

Wood

Not Recommended

Aluminum foil

Grocery bags

Recycled paper

Lead crystal

Newspapers

Metal

Metallic trimmed china

Cooking Hints

Cover foods for faster, more even heating. Glass lids, plastic wrap, plate covers or other paper products may be used. Do not seal. Instead, allow for steamventing at all times.

Pierce pouches, plastic wrap covers and all foods with a thin skin or membrane, such as potatoes, squash, tomatoes, eggs, etc. This prevents an eruption in the oven and allows for expansion and/or the escape of steam.

Foods should be carefully arranged. For best results, arrange food such as vegetables or casserole-type items evenly around the edge of the plate with slightly less depth in the center. The edges of food items should not overlap or overhang the rim of the container. Cover meats with gravy or au jus and moisten all dry foods other than bread or pastry items.

Do not stack food or plated dishes in your oven.

Instead, when heating more than one serving or platters, all plates should be placed at the same level in the oven, with space between all containers.


Care and Cleaning

Part

Interior, Exterior, and Door

Discharge Air Vents

Intake

Control Panel

Discharge

6 min.

LD10D 2

1000 WATT

0

15 30 sec

45

1

15 s ec

30

45

2

5

4

3

Return dial to "0" if food is removed before end of cook cycle

* Place food in oven

* Close door

* Set dial to desired time

* Remove foo d when bell rings

HEATING GUIDE

ITEM

1 Roll or Pastry

1 Hot Dog

1 Sm all Sandwic h

1 Large Sandwich

1 Bag of P opcorn (3.5 oz)

1 Burrito (Frozen)

1 Cup of Soup (St ew)

1 Casserole

TIME

SETTING

7-10 sec

20-30 sec

30-35 sec

1.00-2.00

1.30-1.45

1.30-1.45

1.30-2.00

1.30-2.30

Splatter Shields

Description

Clean microwave oven with mild detergent in warm water using soft sponge or cloth. Wring sponge or cloth to remove excess water before wiping equipment. If desired, boil a cup of water in microwave oven to loosen soil before cleaning.

Important:

• Do not use abrasive cleansers or cleaners containing ammonia.

These could damage finish.

• Never pour water into microwave oven bottom.

• Do not use water pressure type cleaning systems.

Check monthly for a buildup of cooking vapors along intake and discharge louvers on bottom and back of oven. Clean air vents with damp cloth to ensure proper airflow. Dry thoroughly.

Open oven door to deactivate oven timer. Clean with mild detergent in warm water using soft sponge or cloth.

Splatter shields can be cleaned in place or removed. Clean with mild detergent in warm water using soft sponge or cloth.

Splatter shields are held in place with (3) screws. If desired, remove splatter shields for cleaning by removing screws. Replace splatter shields before using oven.

©2004 Maytag Appliances Company 16023053 Rev. 0 B–5

Before Calling for Service

Record all inspections and repair for future reference.

!

WARNING

To avoid electrical shock which can cause severe personal injury or death, do not remove outer case at any time.

Only an authorized servicer should remove outer case.

Symptom

If oven does not operate:

If oven light does not work:

If oven operates intermittently:

Oven operates, but does not heat food:

Check

• Check fuse or circuit breaker.

• Confirm oven is plugged into dedicated circuit.

• Confirm oven is on grounded and polarized circuit.

Contact electrician to confirm.

• Oven light must be replaced by a servicer.

• Check air discharge area for obstructions.

• Place one cup cool water in oven. Heat for one minute. If water temperature does not rise, oven is operating incorrectly and a servicer should be called.

Any questions or to locate an authorized servicer, call 1-866-426-2621 inside U.S.A. 1-319-622-5511 outside U.S.A. If an automated telephone system is reached, select Commercial Microwave Ovens category. Warranty service must be performed by an authorized servicer. Amana also recommends contacting an authorized servicer if service is required after warranty expires.


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