Service Manual - ACP Service Connection

Service

International Commercial

Microwave Oven

Service Manual for

Amana

®

This Base Manual covers Commercial

Microwave Ovens with 120/230 V, 50 Hz.

Refer to individual Technical Sheet for information on specific models.

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

HDC511

HDC514

HDC518

DEC11E

DEC14E

DEC18E

UC11E

UC14E

UC18E

UHDC511

UHDC514

UHDC518

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

RS5320013

Revision 0

August 2000

Important Information

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 manual. REVIEW ALL SERVICE INFORMATION IN THE

APPROPRIATE SERVICE MANUAL BEFORE BEGINNING REPAIRS.

Important Notices for Consumers and Servicers

!

WARNING

To avoid risk of serious injury or death, repairs should not be attempted by an unauthorized personnel, dangerous conditions (such as exposure to electrical shock) may result.

!

CAUTION

Amana will not be responsible for any injury or property damage from improper service procedures. If prefroming service on your own product, assume responsibility for any personal injury or property damage which may result.

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

CONSUMER AFFAIRS DEPT.

AMANA REFRIGERATION, INC.

AMANA, IOWA 52204

OR

CALL

1-319-622-5511 and ask for

Consumer Affairs

If outside the United States contact:

AMANA

ATTN: CONSUMER AFFAIRS DEPT

2800 220 th Trail

AMANA, IOWA 52204, USA

Telephone: (319) 622-5511

Facsimile: (319) 622-2180

TELEX: 4330076 AMANA

CABLE: "AMANA", AMANA, IOWA, USA

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 or product or property damage.

RS5320013 Rev. 0 2

Important Product Information

!

WARNING

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

!

WARNING

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

(A) Do not operate or allow oven to be operated with door open.

(B) 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

(C) 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.

(D) Any defective 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.

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

Earthing Instructions

!

WARNING

Do not remove earthing prong when installing earthed appliance in a home or business that does not have three wire earthing receptacle, under no condition is earthing prong to be cut off or removed. It is the personal responsibility of the consumer to contact a qualified electrician and have properly earthed three prong wall receptacle installed in accordance with appropriate electrical codes

Should a two prong adapter plug be required temporarily, it is the personal responsibility of the consumer to have it replaced with properly earthed three prong receptacle or the two prong adapter properly earthed by a qualified electrician in accordance with appropriate electrical codes.

Servicing of Earthed Products

The standard accepted color coding for earthing wires is

GREEN or GREEN WITH YELLOW STRIPE. These earth leads are NOT to be used as current carrying conductors. It is extremely important that the technician replace any and all earths prior to completion of the service call. Under no condition should earth wire be left off causing a potential hazard to technicians and consumer.

Wiring

Good service practice is to never route wiring over terminals and/or sharp edges. This applies to any wiring without regard to the circuit voltage. Wire insulation 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.

Amana Appliances • 2800 220thTrail • Amana, Iowa • 52204-0001 • Printed in the U.S.A.

3 RS5320013 Rev. 0

Table of Contents

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

Important Information .................................................. 3

Important Safety Information ....................................... 5

Product Information

Antenna Blade ......................................................... 9

Blower/Fan Assembly .............................................. 9

Grease Shield .......................................................... 9

Door Interlock and Monitoring Switch ....................... 9

Auto Transformer ..................................................... 9

Transformer High Voltage ......................................... 9

High Voltage Capacitor ............................................ 9

High Voltage Diode (Rectifier) .................................. 9

Magnetron ............................................................... 9

Thermal Cutout Protectors ....................................... 9

Touch Panels ........................................................... 9

Triac ........................................................................ 9

Antenna Motor(s) ..................................................... 9

Installation

Unpacking Oven .................................................... 10

Oven Placement .................................................... 10

Radio Interference .................................................. 10

Grounding Instructions ........................................... 10

Care and Cleaning

Changing Oven Light Bulb ...................................... 11

Cleaning Interior, Exterior, and Door ....................... 11

Cleaning Splatter Shield ........................................ 11

Cleaning Air Intake Filter ....................................... 12

Cleaning Discharge Air Vents ................................ 12

Control Panel Features ............................................. 13

Displays

Cooking Methods ................................................... 14

Cooking Displays ................................................... 14

Programming Displays ........................................... 14

Operation

Interrupting Operation ............................................ 15

Canceling Mistakes ............................................... 15

Operating Preprogrammed Pads ............................ 15

Using X2 Pad ......................................................... 15

Manual Time Entry ................................................ 15

Programming Instructions

Memory Pads ........................................................ 16

Multiple Cooking Stages ........................................ 16

X2 Quantity Feature ............................................... 16

User Options ......................................................... 17

Component Testing Procedures ................................ 18

Test Modes

Power Test ............................................................. 21

Microwave Energy Leakage Testing

Equipment ............................................................. 22

Procedure for Measuring Radiation Leakage .......... 22

Measurement With the Outer Case Removed ........ 22

Measurement With a Fully Assembled Oven ......... 22

Record Keeping and Notification

After Measurement ................................................ 22

Troubleshooting

Initial Power Up .................................................. 23

Standby Condition .............................................. 24

Cook Condition ................................................... 25

Disassembly

Door Removal ........................................................ 26

Inner Door/Window Removal .................................. 26

Door Disassembly ................................................. 26

Door Handle ........................................................... 26

Hinge ..................................................................... 26

Interlock Switch Replacement/DoorAdjustment ..... 27

Outer Case ............................................................ 28

Back Panel ............................................................ 28

Grease Shield ........................................................ 28

Antenna Assembly–Top ......................................... 28

Antenna Motor–Top ................................................ 28

Oven Tray Removal ................................................ 28

Antenna Assembly–Bottom ................................... 28

Antenna Motor–Bottom .......................................... 29

Touch Panel Assembly .......................................... 29

Control Board ........................................................ 29

Interlock Switch Assembly .................................... 29

Magnetron Cutout (TCO) ........................................ 29

Triac ...................................................................... 29

Diodes ................................................................... 29

Magnetron ............................................................. 30

Cavity Thermal Cutout Replacement ...................... 30

Fuse ...................................................................... 30

Blower Wheel and Motor ........................................ 30

Fan Blade .............................................................. 31

Line Filter .............................................................. 31

Auto Transformer ................................................... 31

High Voltage Transformer ....................................... 31

Capacitor ............................................................... 31

Power Cord ............................................................ 31

Lamp Receptacle ................................................... 31

Replacing Oven Lamp ............................................ 31

Component Location

Figure 1 .............................................................. 32

Figure 2 .............................................................. 33

Figure 3 .............................................................. 34

RS5320013 Rev. 0 4

Important Safety Information

5 RS5320013 Rev. 0


RS5320013 Rev. 0 6


7 RS5320013 Rev. 0


!

CAUTION

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

The basic design of the Amana or Menumaster microwave ovens make it an inherently safe device to both user and servicer. However, there are some precautions which should be followed when servicing the microwave oven to maintain this safety. These are as follows:

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

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

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.

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 Amana Appliances immediately.

5. Always have the oven disconnected when the outer case is removed except when making the "live" tests called for in this 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.

6. Always earth the capacitors on the magnetron filter box and H. V. Capacitor 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.

7. In the area of the transformer, capacitor, diode, and magnetron there is HIGH VOLTAGE. When the unit is operating, keep this area clean and free of anything which could possibly cause an arc or earthing, etc.

8. Do not for any reason defeat the interlock switches.

There is no valid reason for this action at any time; nor will it be condoned by Amana.

9. IMPORTANT: Before returning a microwave to a customer, check for proper switch interlock action.

The primary and secondary switches MUST open when the door is actuated. The monitor switch

MUST close at a 1 /

4

" when the door is opened.

10.Before returning a microwave to a customer, verify the door spacing is reasonably uniform along the top, bottom, and sides, and that it measures 1 /

8

" or less.

11. The Amana microwave oven should never be operated with:

• Any components removed and/or bypassed.

• Any of the safety interlocks found to be defective.

• Any of the seal surfaces defective, missing, or damaged.

12.To ensure that the unit does not emit excessive microwave leakage and to meet the Department of

Health Human Service guidelines, check the oven for microwave leakage using Narda Model 8100,

8200, Holaday HI1500, HI1501 or Simpson 380M leakage monitor as outlined in the instructions. The maximum leakage level allowed is 4mW/cm 2 .

13.If servicer encounters an emission reading over

4 mw/cm 2 the servicer is to cease repair and contact the Amana Service Department immediately for further direction. Amana Appliances will contact the proper Government Agency upon verification of the test results.

RS5320013 Rev. 0 8

Product Information

Antenna Blade

Distributes microwave energy throughout the cavity.

High Voltage Capacitor

Doubles the A.C. output voltage from the high voltage transformer.

Blower/Fan Assembly

Circulates cooling air throughout the microwave oven compartment and cavity.

High Voltage Diode (Rectifier)

Is connected at the output side of the high voltage capacitor. It changes voltage from A.C. to D.C. It passes current in one direction and blocks it in the other. Also called a rectifier.

Grease Shield

Covers and protects the antenna blade assembly.

Door Interlock and Monitoring Switch

NOTE: When the line fuse is open, Interlock Switch

Assembly must be replaced.

Interlock switch assembly mounts behind oven cavity front bulkhead. Switches are actuated by the door hooks.

Monitoring switch (contacts COM and NC) is actuated by the bottom door hook.

The primary interlock switch (contacts COM and NO) is actuated by the top door hook.

The secondary interlock switch (contacts COM and NO) is actuated by the bottom door hook.

If a malfunction occurs in the primary interlock when door opens, current will flow through the monitor switch causing the oven fuse to open.

If a faulty door interlock switch has allowed current through the monitor switch, the switch assembly must be replaced (see interlock switch testing) before replacing fuse.

!

DANGER

To avoid severe personal injury or death avoid contacting any high voltage parts. The capacitors are at high voltage (4000 volt) potential and it is extremely important that they be earthed before handling.

Magnetron

With filament voltage and high D.C. voltage from the output of the H.V. capacitor/diode junction, the magnetron will put out an electomagnetic radio frequency of 2450 MHz to heat the food load in the oven.

Thermal Cutout Protectors

At a predetermined temperature, the thermal cut-outs will open.

• Magnetron thermal cut-outs are mounted directly on the body of the magnetron.

• Cavity thermal cut-out is mounted directly on the left side of cavity exterior, inside the exhaust duct.

Touch Panels

Allows consumer operation and programming of oven.

Triac

Triac is controlled by control board. Triac controls one side of the power line going to the high voltage power transformer.

• Triac is mounted on blower bracket.

Antenna Motor(s)

Antenna motor(s) rotate(s) antenna assemblies.

Auto Transformer

Auto transformer in this unit provides a voltage of 120,

208, or 230 VAC.

Transformer High Voltage

High voltage transformer is used in this unit, which supplies high voltage A.C. for operation of the magnetron tube.

Model

HDC511

HDC514

HDC518

DEC11E

DEC14E

DEC18E

UC11E

UC14E

UC18E

UHDC511

UHDC514

UHDC518

Receptacle and Plug

CEE 7/7 Shuko

BS 1363A

9 RS5320013 Rev. 0

Installation

Unpacking Oven

• Remove packing and printed material from oven cavity.

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

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

• If oven has been stored in extermely cold area, wait a few hours before connecting power.

Oven Placement

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

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

• Install oven on level countertop surface.

• Place warning label in a conspicuous place close to microwave oven.

• Outlet should be located so that plug is accessible when oven is in place.

A

A

A

B

A

B

Radio Interference

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

• Clean door and sealing surfaces of oven according to instructions in "Care and Cleaning" section.

• Place radio, television, etc. as far as possible from oven.

• Use properly installed antenna on radio, television, etc.

to obtain stronger signal reception.

Earthing Instructions

NOTE: Do not under any circumstances cut or remove earthing prong from the plug or bend power prongs to fit receptacle other than one shown for your equipment. Such abuse of the plug can result in electrical shock or overheating.

!

WARNING

Improper use of earthing plug can result in a risk of electrical shock or death.

This equipment MUST be earthed. In the event of an electrical short circuit, earthing reduces risk of electric shock by providing an escape wire for electric current.

This oven is equipped with a cord having earthing wire with a earthing plug. Plug must be plugged into an outlet that is properly installed and earthed. DO NOT use a two-prong adapter.

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

Do not use an extension cord. If product power cord is too short, have a qualified electrician install an appropriate receptacle. This equipment should be plugged into a separate 50 Hz circuit with the appropriate electrical rating as shown in the drawings. When an oven is on a circuit with other equipment, an increase in cooking times may be required and fuses can be blown.

A—Allow at least 7" (17.8 cm) of clearance around top and sides of oven. Proper air flow around oven cools electrical components. With restricted air flow, oven may not operate properly and life of electrical parts is reduced.

B—Allow at least 2 9 /

16

" (6.5 cm) between air discharge on back of oven and back wall.

External Equipotential Earthing Terminal

Equipment has secondary earthing terminal. Terminal provides external earthing connection used in addition to earthing prong on plug. Located on outside of oven back, terminal is marked with symbol shown below.

RS5320013 Rev. 0 10

Care and Cleaning

Changing Oven Light Bulb

Cleaning Interior, Exterior, and Door

!

CAUTION

To avoid electrical shock hazard unplug power cord or open circuit breaker to microwave oven before replacing light bulb. After replacing light bulb, reconnect power.

!

CAUTION

To avoid burns and cuts, wear gloves to protect hands should bulb break. If hot, allow bulb to cool.

Tools and Bulb

• Protective gloves

• Standard screwdriver or ¼ inch socket

• Light bulb rated 120 volt, 25 watt

!

WARNING

To avoid electrical shock which can cause severe personal injury or death, unplug power cord or open circuit breaker to oven before cleaning.

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.

• 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.

1. Unplug oven.

2. Remove screw from side of oven and remove access cover.

Cleaning Splatter Shield

Splatter shield keeps top of microwave oven cavity and antenna from becoming soiled. Clean soil from shield with damp cloth or clean with mild detergent and water.

Remove splatter shield for easy cleaning.

1. Unplug oven before removing splatter shield to stop antenna from rotating.

2. Place fingers behind shield, pull forward, and down.

• When removing and replacing splatter shield, be careful not to bend antenna.

3. Wash shield in hot, soapy water. Rinse and dry thoroughly.

• Do not wash splatter shield in dishwasher.

• Do not use abrasive cleaners.

4. Reinstall splatter shield by placing front portion of the shield in first. Lift until shield slides into holes located in back of oven.

Correct Installation

3. Remove bulb by turning counterclockwise, being careful not to burn fingers or break bulb.

• Replace with bulb rated 120 volt, 25 watt.

4. Reverse procedure to reassemble.

11 RS5320013 Rev. 0

Care and Cleaning

Incorrect Installation

(Shield in upside down)

To replace filter

• Place bottom portion of filter into position first and push in on the top portion of the filter, until filter is securely in place.

NOTE: When placing filter back into position, verify plastic tab is on the outside of the unit.

Cleaning Discharge Air Vents

Check for a buildup of cooking vapors along discharge louvers in back of oven. Clean air vent with damp cloth to ensure proper airflow. Dry thoroughly.

NOTE: If splatter shield is installed upside down, shield will interfere with antenna movement.

Cleaning Air Intake Filter

!

CAUTION

To avoid overheating and oven damage, clean air filter regularly.

!

CAUTION

To avoid oven door damage, do not lift oven by oven door.

Filter is located below oven door. Clean air intake filter weekly for proper air flow. Wash filter in hot water and mild detergent. Do not use oven without filter in place.

To remove filter

• Locate plastic tab in the center of filter and pull downward (rolling the filter), to release filter from metal holding tabs.

Plastic

tab

Discharge air vent

RS5320013 Rev. 0 12

Control Panel Features

TIME ENTRY pad is used to enter cooking time for either manual entry or programming. Cooking time ranges from 1 second (00:01) to a total of 60 minutes

(60:00) over four stages. If more than 60 minutes of total microwave cooking time is required, open door and inspect food before beginning new cooking cycle.

START pad begins Manual Time Entry cooking or restarts an interrupted cooking cycle. When programming, use to save time and power level, and to advance to next user option.

STOP/ RESET pad exits programming mode and stop cooking during cooking cycle.

X2 pad increases the cooking time when cooking more than one item at a time is necessary. The amount of added time when the X2 pad is pressed is a percent of the original preprogrammed cooking time. The percent can be set from 10% to 100% with the default at 80%.

The percent of the time added can be changed for individual cooking sequences.

MICRO DEFR WARM MEDHI POWER HOLD

TIMER

COOK

LEVEL

READY

CLOCK

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

Numbered pads begin cooking programs or enter times and power levels for “Manual Time Entry” cooking.

Stages

This oven can be programmed to run 4 cooking sequences consecutively. Each sequence is called a stage. For example, the first cycle could be programmed to defrost at 60% power, the second to defrost at 30% power, the third to heat at 100% power, and the fourth to hold warm at 10% power. Total time for all cooking stages counts down.

POWER LEVEL pad is used to set microwave power level. When cooking, the power level can be decreased for foods that require slower more even cooking.

Microwave power levels range from 0% to 100% in 10% increments. If cooking time is set and START pad pressed, oven cooks at 100% power. When programming, to reset power level to 100%, press

POWER LEVEL pad.

User Options

User Options allow the user to program the oven to perform in a way convenient to the user. The beeps, maximum cooking time, and number of preprogrammed cooking sequences can be changed.

13 RS5320013 Rev. 0

Displays

Cooking Methods

Memory Pads

This oven can of store either 10 or 100 cooking programs in memory.

Single Pad Cooking

From the factory, it is programmed to store 10 cooking programs. Each pad begins a cooking program.

Double Pad Cooking

The oven control can be changed to store up to 100 cooking programs. To set the control to 100 cooking programs, see the “User’s Options” section of this manual. To heat when the oven is set for 100 programs , press 2 memory pads. For example, to start the first program, press pad 0, then pad 1. To use the second program, press pad 0, then pad 2. After the pads are pressed, the oven starts automatically and time counts down.

Manual Time Entry

Manual Time Entry feature allows the operator to heat without changing the preprogrammed pads. Time must be entered and power can be set before cooking. START pad must be pressed to begin cooking.

Programming Displays


TIMER

READY

COOK

LEVEL

CLOCK

This display indicates oven is in programming mode and ready to program a numbered pad(s).


TIMER

COOK

LEVEL

READY

CLOCK

This display indicates oven is set to double pad entry and

2 pads must be pressed to enter a program. See

“Programming” section of manual for programming procedure or “User Options” to change from single or double pad entry.


TIMER

COOK

LEVEL

READY

CLOCK

Cooking Displays


TIMER

READY

COOK

LEVEL

CLOCK

This display shows briefly when programming more than one stage. It indicates programming mode for pad 02.

The smaller “1” indicates stage 1 is being programmed.

READY shows when oven control will accept entries.


TIMER

COOK

LEVEL

READY

CLOCK


TIMER

READY

COOK

LEVEL

CLOCK

This display indicates programming user options mode.

See “User Options” section of manual for programming procedure.

25:20 shows cooking time. When more than one cooking stage is programmed, total time for all stages displays.

POWER Shows when microwave energy is generated.

COOK LEVEL shows when oven is operating. 8 indicates the microwave power level used. If number does not show, oven is cooking at 100% power.


TIMER

READY

COOK

LEVEL

CLOCK

This display indicates cooking factor of 80% when X2 pad is pressed.

RS5320013 Rev. 0 14

Operation

Interrupting Operation

Open oven door or press

STOP/RESET pad to interrupt operation. Display continues to show countdown time.

Close door and press

START pad to resume oven operation.

Double Pad Programs

The oven control can be changed to store up to 100 cooking programs. See the “User’s Options” section of this manual to change oven control.

To start a double pad cooking program, press 2 memory pads. For example, press pad 0 and pad 3 to start a cooking program.

Canceling Mistakes

If oven is not cooking, press STOP/RESET pad to clear display. If oven is cooking, 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

From the factory, this oven can of store up to 10 preprogrammed cooking sequences in memory. To heat using a preprogrammed sequence, press a numbered pad. Oven starts to heat automatically. Example: Heat using the third cooking sequence.

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

• Display shows “READY”.

• If pad is not pressed in 60 seconds, open and close oven door again.

2. Press 3 pad.

• Oven operates and time counts down.

• Display shows cooking time, “POWER”, ”COOK

LEVEL”. Display shows “POWER” only when microwave energy is present.

• If power level other than 100 percent power was programmed, display shows “COOK LEVEL” and power level.

• If additional cooking time is required, press preprogrammed pads before or after cooking cycle ends.

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

Preprogrammed Times and Cook Level

All preprogrammed pads arrive set at full power.

3

4

5

Pads

1

2

Times

10 sec.

20 sec.

30 sec.

45 sec.

1 min.

8

9

0

Pads

6

7

Times

1:30 min.

2 min.

3 min.

4 min.

5 min.

Using X2 Pad

X2 pad increases the cooking time when cooking more than one item at a time is necessary. The amount of added time when the X2 pad is pressed is a percent of the original preprogrammed cooking time. The percent can be set from 10% to 100% with the default at 80%.

The percent of the time added can be changed for individual cooking programs.

Press X2 pad before pressing memory pad. For example, press X2 pad and then memory pad 3. Pad 3 normally cooks for 30 seconds. When the X2 pad is pressed before memory pad 3, 54 seconds displays because it added 24 seconds, (80% of 30 sec. =24 sec.).

Manual Time Entry

Manual Time Entry feature allows the operator to enter time and power levels, and heat without changing the preprogrammed pads. Example: Heat for 30 seconds at

80% power.

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

• Display shows “READY”. Fan and light operate.

• If pad is not pressed in 60 seconds, open and close oven door again.

2. Press TIME ENTRY pad.

• Display shows “0000” and “READY”.

3. Press 3 and 0 pad to enter cooking time.

4. Press POWER LEVEL pad to change power level.

• Display shows “COOK LEVEL” and current power level if other than 100 percent power.

5. Press 8 pad to enter desired power level.

6. Press START pad.

• Oven operates and time counts down.

• Display shows cooking time, “POWER”, “COOK

LEVEL”.

• Display shows “POWER” only when microwave energy is present.

• If power level other than 100 percent power was programmed, display shows “COOK LEVEL” and power level. Display counts down cooking time.

7. Oven stops cooking and oven signal sounds when cooking timing elapses.

15 RS5320013 Rev. 0

Programming Instructions

Memory Pads

From the factory, this oven can of store up to 10 cooking programs. Follow instructions below to program cooking times and power levels for customized cooking.

Example: Program third cooking sequence to heat for 30 seconds at 80% power.

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

“P:0”.

3. Press 3 pad to select memory pad.

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

4. Press 3 and 0 pad to enter desired cooking time.




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

• Display shows “P:0”.

• Repeat step 3–8 to program additional pads.

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

4. Press 3 and 0 to enter desired cooking time.




7. Press TIME ENTRY pad.

• Display briefly shows "P:03 (1-4) " indicating programming, pad 3, stage 2. Then cook time and power level for stage show in display.

• Repeat steps 5–8 to create additional stages.

8. Press START pad to save new cooking time and power level in oven memory.


X2 Quantity Feature

This feature allows the user to change the amount of time added when the X2 pad and then the programmed pad is pressed. Based on the original time, the X2 pad can add from 10%-100% of additional cooking time. The default is

80%. Example: change cooking factor to 50% for third cooking sequence.

1. Open oven door.

• If door is closed or

RESET pad is pressed before finishing programming sequence, oven exits programming mode.



“P:--”.

3. Press 3 pad to select the cooking program.

4. Press 5 pad to change cooking factor.

• Display shows “CF:05”.

5. Press START pad to save changes.




To create a double pad program, follow the instructions above except for a change to step #3. When entering the cooking program number, press 2 memory pads. For example, press pads 0 and pad 3 to create a new cooking program.

Multiple Cooking Stages

Follow instructions below to program oven to perform four consecutive cooking cycles without interruption.

Example: Program third cooking sequence to heat for 30 seconds at 80% power, 40 seconds at 50% power, and

10 seconds at 100% power.

1. Open oven door.



2. Press pad 1 for approximately 5 seconds.


“P:0”.

3. Press 3 pad to select memory pad.

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

RS5320013 Rev. 0 16



To change the quantity for a double pad program, follow the instructions above except for a change to step #3.

When entering the cooking program number, press 2 memory pads. For example, press pads 0 and pad 3 to create a new cooking program. After the program is saved, press pad 0 and pad 3 to start a cooking program.

Programming Instructions

User Options

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

Change setting to single digit pad operation.

1. Open oven door.




“0P:”.

3. Press 9 pad.

• See table for options.

• Displays shows “OP:91”.

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

4. Press 9 pad repeatedly to change setting.

5. Press START pad to save changes.

• Repeat steps 3-5 to change additional options.

• Changes appear after door is closed or STOP/

RESET is pressed.


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

OP:23

OP:30

OP:31

OP:40

OP:41

OP:42

OP:43

Display

OP:10

OP:11

OP:12

OP:20

OP:21

OP:22

OP:50

OP:51

OP:60

OP:61

OP:70

OP:71

7

Maximum Heating

Time

8

Manual Operation

9

Double Digit

Operation

OP:80

OP:81

OP:90

OP:91

Options (Factory Settings in Bold)

3 second continuous beep.

Continuous beep until door is opened.

5 beeps bursts until door is opened.

Eliminates beep.

Sets volume to low.

Sets volume to medium.

Sets volume to high.

Prevents beep when pad is pressed.

Allows beep when pad is pressed.

15 seconds after oven door is opened, keyboard disabled.

30 seconds after oven door is opened, keyboard disabled.

1 minute 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 heating time to be changed while oven is heating when a memory pad is pressed.

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

Cancels heating time countdown after door is opened during cycle.

Allows 60 minutes of heating time.

Allows 10 minutes of heating time.

Allows use of preprogrammed pads only.

Allows use of manual time entry and preprogrammed pads.

Allows 10 (0-9) preprogrammed pads.

Allows 100 (00-99) preprogrammed pads.

17 RS5320013 Rev. 0

Component Specifications

!

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

Testing

Disconnect all wires from TCO.

Measure resistance across terminals.

Cavity Thermal Fuse

Magnetron TCO

Results

Diode Assembly

Discharge Capacitors

Remove diode lead from capacitor and connect ohmmeter.

Reverse leads for second test.

Open at 104

°

C (219

°

F)

Open at 138

°

C (280

°

F) and closed at 82

°

C (180

°

F)

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.

MT2

MT1 GA TE

Line

Earth

Load

Wire Harness

Triac

Capacitor

Snubber Assembly

Magnetron

Blower Motor

Disconnect wires to triac.

Measure resistance from:

MT1 to MT2

MT1 to Gate

MT2 to Gate

All terminals to ground


Caution - Do not operate oven with wire to terminal MT2 removed.

Infinite

Approximately 40

Ω

or more

Infinite

Infinite

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

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

Also check between each terminal and capacitor case.

Disconnect wires to snubber.



Infinite

Between Terminals: Less than 1

Ω

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

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 retest.

Remove all wires from motor.

Measure resistance across coil.

Approximately 30

Ω

Line filter Line to Line

Load to Load

Line to Load

Any terminal to Earth

Test continuity of wires.

.8 M

Ω

.8 M

Ω

Continuity

Infinite

Indicates continuity

RS5320013 Rev. 0 18


!

WARNING


COM

Illustration

4

5

6

Component

Transformer

1100 Watt

(COM)

3

5

6

6

220

230

COM

230

4

8

5

7

Testing

Discharge Capacitor

Remove all wires from terminals, and measure resistance from:

220 to Common

230 to Common

Terminal 5 to 6

Terminal 4 to Earth screw on transformer

Terminal 4 to any other terminal

#

2

#

5

#

6

#

7

#

8

(230V)

1

Transformer

1800 and 1400 Watt

#

4

#

1

4

3

1

Gray Pink

Discharge Capacitor

Remove all wires from terminals, and measure resistance from:

230 to Common

Terminal 5 to 6

Terminal 7 to 8

Terminal 4 to Earth screw on transformer

Terminal 4 to any other terminal

Stirrer motor Remove all wires from motor.


Results

This transformer is equipped with a

155

°

C thermal cutout

1.3

Ω

1.3

Ω

<1

Ω

70

Ω

Infinite resistance should be indicated, if not replace transformer.

1

Ω

<1

Ω

<1

Ω

45

Ω

Infinite resistance should be indicated, if not replace transformer.

Approximately 12 K

Ω

Primary /

Log ic

Mo nitor

Secondary

Interlock switch assembly

C

C

C

Disconnect wires to switch.

With door open measure resistance from:

Terminal C to NO Primary

Terminal C to NC Monitor

Terminal C to NO Secondary

With door closed measure resistance from:

Terminal C to NO Primary

Terminal C to NC Monitor

Terminal C to NO Secondary

Door Closed

NO

NC

NO

Primary

Monitor

Secondary

Infinite


Infinite


Infinite


19 RS5320013 Rev. 0


!

WARNING


Illustration

P2

Pin #1

P1

Pin #1

Component

Controller board

1

P1

10

Testing

Line voltage to control board

P2 connector

Pin 1—Pin 3

Output drive voltage to triac

Triac terminals

Gate—T1

Fan relay (controls blower motor, antenna motor(s), and oven light)

Control board

Terminals C—J

Cook relay

Control board

Terminals F—K

P1 connector used for touch panel ribbon

Touch Panel

Assembly

Continuity is indicated as 100

Ω

and below.

Pin 1: is considered Ground

6

5

4

3

2

8

7

10

9

1

Split

Results

Line voltage (All Conditions)

0 VAC (Idle and Standby)

0.9 VAC (Cook)

Line voltage (Idle)

0 VAC (Standby and Cook)

Line voltage (Idle)

0 volts (Standby and Cook)

4

5

6

7

2

3

Pad

1

8

9

0

Start

Stop/Reset

Power Level

X 2

Time Entry

7 & 9

6 & 9

5 & 9

4 & 9

4 & 8

5 & 8

6 & 8

7 & 8

Trace

8 & 10

7 & 10

6 & 10

5 & 10

4 & 10

3 & 10

8 & 9

Measurement

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Conditions

Initial Power Up Condition:

Idle Condition:

Standby Condition:

Cook Condition:

Apply power to oven with door closed.

Oven plugged in, display blank (no other components operating).

Open oven door, light and motors operate.

Food load in oven, cook cycle initiated.

RS5320013 Rev. 0 20

Test Modes

Power Test (Traditional Test Method)

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

Menumaster power test kit M95D5 (Celsius).

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

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

Initial water temperature should be approximately 60

°

F (16

°

C).

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

33 seconds for ovens with more than 1550 watts or 63 seconds for ovens with less than 1550 watts.

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 (

∆

T).

6. See the Traditional Power Test Temperature Chart below.

NOTES:

•

The IEC-705 test method requires precision measurements and equipment. It is not practical to perform the IEC test in the field. To convert the traditional power test results to the approximate IEC-705 rating, take the traditional power test results and add 100 watts per magnetron for the unit being tested.

Example:

1627



watts output using the traditional power test for model HDC518

+ 200



watts (2 magnetrons X 100 watts)

1827



Approximate IEC-705 results

•

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

•

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

•

Low line voltage will cause lower temperature rise.

∆

T

(°F)

17

18

19

20

21

22

Traditional Power Test Temperature Chart

THIRTY THREE (33) SECONDS run time chart for units more than 1550 Watts cooking power

Cooking

∆

T Cooking

∆

T Cooking

∆

T Cooking

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

1319

1395

1472

1550

1627

1705

23

24

25

26

27

1782

1860

1937

2015

2092

9.5

1330

10.5

1400

10.5

1470

11 1540

11.5

1610

12 1680

12.5

13

13.5

14

14.5

15

1750

1820

1890

1960

2030

2100

∆

T

(°F)

22

23

24

25

26

27

28

18

19

20

21

SIXTY-THREE (63) SECONDS run time chart for units less than 1550 Watts cooking power

Cooking

∆

T Cooking

∆

T Cooking

∆

T Cooking

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

697

736

775

814

852

891

930

969

1007

1046

1085

29

30

31

32

33

34

35

36

37

38

39

1124

1162

1201

1240

1279

1317

1359

1395

1434

1472

1511

9

10

11

12

13

14

15

630

700

770

840

910

980

1050

16

17

18

19

20

21

22

1120

1190

1260

1330

1400

1470

1540

21 RS5320013 Rev. 0

Microwave Energy Leakage Testing

!

WARNING

Measurement With the Outer Case

Removed

Check for radiation leakage after servicing. Should the leakage be more than 4mW/cm

2

inform Amana 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 at the customer’s location.

!

DANGER

To avoid risk of personal injury or death avoid contacting any high voltage components.

Whenever you replace the magnetron, measure for radiation leakage before the outer case 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

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.

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/cm2 or less.

• Leakage for fully assembled oven with door normally closed, 4mW/cm2 or less.

• Leakage for a fully assembly oven (before the latch switch (primary) is interrupted) while pulling the door,

4mW/cm2 or less.

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 ± 15 cc (9 oz ± 1/2 oz) of 20 ± 5°C. (68±

9°F.) water in a glass beaker which is graduated to

600 cc and place the beaker in the center of shelf.

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.

RS5320013 Rev. 0 22

Troubleshooting

Initial Power Up

Apply power with door closed.

Relays click.

YES

Which display is shown?

NO

1.

2.

3.

Open line fuse.

Open magnetron TCO.

Open cavity TCO.

4. Inoperative control board.

5. Broken or improper wire connections.


TIMER

COOK

LEVEL

READY

CLOCK


TIMER

COOK

LEVEL

READY

CLOCK

Proceed to "Standby" condition.

Blower, oven light, and antenna all activate.

1.

Inoperative interlock switch assembly (primary).

2. Broken or improper wire connections.

23 RS5320013 Rev. 0

Troubleshooting

Standby Condition

Open oven door.

Display


TIMER

READY

COOK

LEVEL

CLOCK

Yes

NO

1.

2.

3.

Inoperative interlock switch assembly (primary).

Inoperative control board.

Broken or improper wire connections.

Oven lamp is on?

Yes

Blower motor operates?

NO

NO

1.

2.

3.

4.

1.

2.

Inoperative lamp.

Inoperative lamp receptacle.



Inoperative blower motor.


Yes

Antenna motor(s) operate?

Yes

"Standby Condition" normal - proceed to

"Cook Condition".

NO

1.

2.

3.

4.

Inoperative antenna motor.

Binding gears (bottom antenna only).

Grease shield installed upside down

(top antenna only).


RS5320013 Rev. 0 24

Troubleshooting

Cook Condition

Display

Place cup of water in oven and close oven door.


TIMER

READY

COOK

LEVEL

CLOCK

NO

1.

2.

3.

4.

5.

Beep not programmed into oven.

Pad not programmed.

Inoperative touch panel.



Display

Push pad number 1.

Pad beeps when pushed?

Yes

MICRO DEFR WARM MEDHI

POWER

HOLD

TIMER

READY

COOK

LEVEL

CLOCK

1.

Primary switch opened in mid-cycle.

NO

Symptoms of the above are as follows:

- Countdown time stops and remains displayed.

- "POWER" indicator disappears.

- "READY" indicator is displayed.

- Blower and antenna motors and light continue to operate.

After 2 minutes, all functions stop and the display goes blank.

2.


Display starts counting down.

Yes

Display counting down to "0" and

beep sounds.

Yes

Open oven door, water is properly heated?

NO

Yes

Oven is operating properly.

Heats very slowly.

NOTE: Verify by performing power test.

1.

2.

3.

4.

5.

One inoperative diode.

One inoperative capacitor.

One inoperative magnetron.

Broken or improper wire connection.

Inoperative or misadjusted interlock switch assembly.

No heat.

1.

2.

3.

4.

5.

Inoperative triac.

Inoperative diodes.

Inoperative capacitors.

Inoperative high voltage transformer.


6.

7.

Inoperative or misadjusted interlock switch assembly.


NOTE:

Shut down after cook cycle - door closed - factory preset at 60 seconds, but can be changed with user options.

Shut down, door open - approximately 2 minutes.

After shut down, display goes blank.

25 RS5320013 Rev. 0

Disassembly

!

WARNING

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

Door Removal

1. Unplug power cord from power source.

2. Remove outer case cover.

3. Remove bolts securing door hinges.

4. Remove door from unit, and lay door on padded surface.

Inner Door/Window Removal

1. Open oven door.

2. Remove screws on hinge side.

3. Beginning at the bottom, carefully insert 1” putty knife between inner and outer door. Pry up on inner door to release tabs, (2 tabs per side). Work in a clockwise direction to release all tabs, see illustration below.

Door ring weld

Hinges

Retainer

lens

Window

outer

*

*

*

*

*

**

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

0261

Inner door

Door latch linkage

Door latch bracket

3

0281

Door outer

2

Tabs

1

Remove screws

4

Door Disassembly

1. Remove door from oven, see “Door Removal” procedure.

2. Perform “Inner Door/Window Removal” procedures, step 1 through step 3 above.

3. Remove door latch linkage plate from latch assembly.

4. Remove screws securing door ring weld, (2 screws under latch linkage and 2 on hinge side of outer door).

5. Remove door ring weld from door.

6. Remove lens retainer and outer window from door.

7. Remove screws securing handle/door latch bracket to gain access to latch spring.

8. Reassemble in reverse order.

9. Proceed to “Interlock Switch Replacement / Door

Adjustment” procedure.

!

CAUTION

When glass retainer is removed, be careful glass does not fall out of frame.

Door Handle

1. Follow “Door Disassembly” procedure through step 6.

2. Remove screws securing latch assembly to outer door.


Hinge

1. Follow Door Disassembly procedure through step 6.

2. Replace hinge on door ring weld.


RS5320013 Rev. 0 26

Disassembly

!

WARNING

Interlock Switch Replacement / Door

Adjustment

NOTE: When line fuse is blown, interlock switch assembly must be replace, even if other electrical components must be replaced to repair the oven.

1. Remove and retain two (2) screws securing switch to cavity. Remove switch.

2. Position new switch assembly into cavity opening.

• First, insert bottom ramp of switch into bottom opening.

• Tilt switch upward and insert top ramp of switch into top opening.

• Be sure both ramps are fully protruded through the front frame of cavity.


7. With door closed, loosen door hinge bolts 1/2 turn.

8. Lift upward on door, using the door handle.

9. With left hand, clamp door to cavity on hinge side of door.

10.While holding door in place, tighten hinge bolts in the order shown.

3

1

4

2

Cavity

Front

Primary

Monitor

Second ary

3. Loosely install screws removed in step 1.

4. Push and hold switch assembly towards front of oven and tighten screws.

5. Transfer wires to new switch.

IMPORTANT:

It is necessary to adjust the door assembly for correct switch function.

6. Tape shim, part number 12382602 and 12019302 to door, as shown.

11. Open and close door several times to check switch operation.

NOTE: If switches do not activate, check condition and alignment of door and hinges.

12.Remove shims.

Shim

.030 in. \ .75 mm

Part Number 12019302

Primary

Monitor

Shim

.060 in. \ 1.5 mm

Part Number 12382602

Secondary

27 RS5320013 Rev. 0

Disassembly

Outer Case

!

WARNING

1. Remove screws securing outer case to chassis.

2. Slide outer case back and lift off.

3. Reassemble outer case in reverse order.

Back panel

Outer case


Antenna Motor–Top

1. See “Component Location” Figure 2, for location.

2. Remove top antenna, see “Antenna Assembly–Top” procedure steps 1 through 5.

3. Disconnect and label wires from motor.

4. Remove screws securing motor to cavity and remove motor.


Oven Tray Removal

See “Component Location” Figure 1, for location.

1. Using a utility knife, cut RTV seal around perimeter of tray.

2. Using a heat gun, apply heat to front lip of tray to release hot melt glue.

3. Pry upward on front lip of tray and remove.

4. Thoroughly remove all traces of old RTV and degrease the tray, cavity bottom, walls, and front flange.

5. Place tray in center of cavity. Do not allow tray to touch side walls.

6. Apply a generous bead of RTV sealent around perimeter of tray.

7. Apply a light water spray to the fresh RTV sealent.

8. Using RTV scrapper, Amana part # R0000039, remove excess RTV.

NOTE: Allow RTV to set for 1 hour before using.

Back Panel

1. Remove outer case.

2. Remove screws securing back panel.

3. Reassemble back panel in reverse order.

Grease Shield


• Remove shield, place fingers between shield and back wall of cavity, pull forward and down to release tabs from back wall.

Antenna Assembly–Top



3. Remove grease shield.

4. Using needle nose pliers, grasp antenna hub and pull downward to remove antenna from shaft.

5. Using needle nose pliers, grasp antenna clip and pull downward to remove clip from shaft.

NOTE: During the remaining steps, use caution when handling antenna to prevent antenna damage.

6. To reinstall antenna, insert clip into antenna hub.

7. Push antenna assembly over motor shaft until antenna bottoms out on shaft collar.

Antenna Assembly–Bottom


1. Remove ceramic tray.

2. Lay oven on its left side and open door.

3. Remove bottom access cover.

4. Insert flat blade screwdriver under gear and pry gear from antenna shaft. Discard old gear and washer.

5. Inside cavity, pull antenna / shaft assembly to remove from cavity. Save old antenna to assist with installation of new shaft.

6. Slide new retainer over new shaft.

7. Push old antenna over shaft and retainer.

8. Push antenna / shaft assembly into cavity hole.

9. With raised rib on edge of washer facing away from cavity, push washer over shaft.

10.With raised rib on gear facing towards cavity, press gear over shaft end tabs until gear snaps into place (“D” shaft).

11. Remove old antenna from shaft.

NOTE: During remaining steps, use caution when handling antenna to prevent antenna damage.

RS5320013 Rev. 0 28

Disassembly

!

WARNING

12.Push new antenna over retainer and shaft until antenna bottoms out on shaft collar.

13.Re-install bottom access cover and place oven in upright position.

14.With door open, plug-in oven and observe antenna operation. Antenna blade should be level with cavity bottom.

Reseal ceramic tray using RTV sealant and scraper

(supplied).

Antenna Motor–Bottom


1. Remove original retaining clip from motor shaft and remove gear. Discard retaining clip and gear.

2. Remove screws securing motor to cavity and remove motor.

3. Disconnect wires from old motor and install on new motor.

4. Secure new motor to cavity.

5. With raised rib on gear towards motor, install gear over motor shaft.

6. Install snap ring into groove on motor shaft.

Touch Panel Assembly




4. Remove ribbon pin connector from control board.

5. Remove screws securing touch panel to cavity.

6. Reassemble touch panel in reverse order.


!

WARNING

To avoid radiation leakage perform microwave energy leakage test.

Magnetron Cutout (TCO)




4. Remove wiring from selected cutout.

5. Remove screws securing cutout.

6. Reassemble cutout in reverse order.

Triac




4. Remove wires from terminals of triac.

5. Remove screws securing triac to blower bracket.

6. Reassemble triac in reverse order.

Diodes




4. Remove screw securing diode bracket to chassis.

5. Remove screws securing diodes to bracket.

6. Replace diodes and reassemble in reverse order.

Control Board



3. Disconnect and label ribbon pin connector, and wires.

4. Remove screws securing control board to cavity and remove board.


29 RS5320013 Rev. 0

Disassembly

!

WARNING

Magnetron



3. Remove outer case and back panel.

4. Using knife, cut tape in 4 areas shown below.


NOTE: When replacing magnetron, verify wire mesh gasket is reinstalled properly.

3

2

1

Cavity Thermal Cutout Replacement



3. Remove control board mounting screws.

4. Slide controller towards center of oven. Do not

remove.

5. Remove exhaust duct mounting screws.

6. Remove thermal fuse mounting screw.

7. Replace thermal fuse, and reassemble in reverse order.

Fuse




4. Replace fuse and reassemble in reverse order.

NOTE: When replacing fuse, interlock switch assembly must be replaced.

4

5. Remove screw securing exhaust duct and slide duct

1 /

2

" (1.2 cm) to the right, (see # 1 below).

6. Remove screws securing blower mounting bracket and slide blower assembly to the left, (see # 2 below).

7. Remove screws securing outlet duct assembly and remove duct, (see # 3 below).

8. Carefully remove flow divider to gain access to magnetron.

9. Remove wires from magnetron being removed.

10.Remove nuts securing magnetron and remove magnetron.

2

1

Blower Wheel and Motor



3. Remove wiring from blower motor terminals.

4. Remove screws securing blower mounting bracket.

5. Remove blower assembly and bracket from oven.

6. Remove screws securing scroll to mounting bracket.

7. Loosen allen set screw securing blower wheel to motor shaft.

8. Remove blower wheel.

9. Remove screws securing motor to mounting bracket.

10.Reassemble blower wheel and motor in reverse order.

NOTE: When reinstalling blower wheel, push blower wheel on shaft, tighten, and rotate to insure clearance between blower wheel, and blower housing.

F a n

W h e e l

M o to r

M o u n tin g b r a c k e t

3

Remove duct work screws in sequence shown.

RS5320013 Rev. 0 30

H o u s in g

Disassembly

!

WARNING

Fan Blade

1. See prior illustration for location.

2. Pull blade off shaft.

3. When reinstalling blade, push blade on shaft and rotate to insure clearance between fan blade and wire terminals.

Line Filter




4. Remove rivets securing line filter to exhaust duct.

5. Remove wire connections from line filter.

6. Reassemble line filter in reverse order.

High Voltage Transformer




4. Remove screws securing transformer to chassis.

5. Pry upward and back to release transformer from chassis.

6. Remove wire connections from transformer.

7. Reassemble transformer in reverse order.

Capacitor




4. Remove screws securing auto transformer to chassis.

5. Discharge capacitor and remove wires from terminals.

6. Remove capacitor bracket mounting screw.

7. Reassemble capacitor in reverse order.

Power Cord




4. Disconnect wiring.

5. Remove strain relief by compressing with pliers.

6. Remove power cord.

7. Reassemble power cord in reverse order.


Lamp Receptacle


2. Unplug power cord and remove outer case.

3. Unscrew lamp from receptacle.

4. Disconnect receptacle wires.

5. Remove screw securing receptacle and lamp barrier to exhaust duct.

6. Reassemble receptacle in reverse order.

Replacing Oven Lamp

!

WARNING

To avoid electrical shock which can cause severe personal injury or death, unplug power cord or open circuit breaker to oven before replacing lamp. After replacing lamp, restore power.

!

CAUTION

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

• Allow oven and lamp to cool.

• Wear gloves when replacing lamp.

Tools Needed

• Protective gloves

• Screwdriver

• 25-watt, 120-volt appliance bulb (available from authorized distributor or servicer)

To remove lamp, turn in direction shown.

1. Remove screws from access cover on side panel of oven exterior.

2. Remove old lamp and replace with new lamp.

3. Replace access cover and screw by reversing procedure in step 1.

31 RS5320013 Rev. 0

Disassembly

!

WARNING

Component Location

Screws


Touch panel

Capacitor

Diode location single magnetron

ovens

Diode location

2 magnetron

ovens

Tray supports

Oven Tray

Grease Shield

Interlock switch

assembly

Figure 1

RS5320013 Rev. 0 32

Disassembly

!

WARNING

Antenna

Motor


Magnetrons

Antenna assembly

top

Shaft

Antenna assembly

bottom

Washer

NOTE: Raised rib on edge of washer

must face away from cavity.

Gear

NOTE: Ribbed side of gear

must face oven cavity.

Figure 2

33

Antenna

Motor

Snap Ring

Original

Clip

Replacement

clip

RS5320013 Rev. 0

Disassembly

!

WARNING

Cavity thermal cutout


Spill shield

Control board

Blower motor

Snubber

Triac

Lamp and receptacle

High Voltage

Transformer

Magnetron TCO

Power cord

Line filter

(Located behind exhaust duct.)

Capacitors

Figure 3

Lamp barrier

Mounting bracket

RS5320013 Rev. 0 34

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