Commercial Microwave  Technical Information

120 V, 60 Hz Models

RCS10

RCS10MPS

RFS10S

RFS12S

RFS12SW2

P1324601M

P1324902M

P1324701M

P1324703M

P1324705M

RCS10MP P1324602M

RCS10MPSED P1324904M

RFS10SW2

RFS12MPS

RFS9B

P1324702M

P1324704M

P1324706M

•

Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit.

•

This technical sheet replaces 16021522 Rev. 0.

• Refer to Service Manual 16021520 for installation, operating, testing, troubleshooting, and disassembly instruction.

!

CAUTION

All safety information must be followed as provided in Service Manual 16021520.

!

WARNING

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

Models

Power Source

Voltage AC

Amperage (Single Unit)

Frequency

Single Phase, 3 wire grounded

Receptacle

Plug

Power Output

Nominal microwave energy (IEC705)

Traditional power test

Operating Frequency

Power Consumption

Cook Condition Microwave

Dimensions

Cabinet

Width

Height

Depth

Oven Interior

Width

Height

Depth

Weight

Crated

RCS10, RCS10MP,

RCS10MPS,

RCS10MPSED

120 VAC

15 A

60 Hz

X

5-15R

5-15P

1000 Watts

900 Watts

2450 MHz

1700 Watts

RFS9B

RFS10S

RFS10SW2

120 VAC

20 A

60 Hz

X

5-20R

5-20P

1000 Watts

900 Watts

2450 MHz

1700 Watts

RFS12S

RFS12MPS

RFS12SW2

120 VAC

20 A

60 Hz

X

5-20R

5-20P

1200 Watts

1100 Watts

2450 MHz

2000 Watts

21 5/8” / 54.9 cm

14 1/8” / 35.9 cm

19 13/16” / 50.3 cm

13 1/2” / 34.3 cm

9 1/2” / 24.1 cm

15 11/16” / 39.8 cm

58 lbs. / 26.3 kg

21 5/8” / 54.9 cm

14 1/8” / 35.9 cm

21 5/8” / 54.9 cm

14 1/8” / 35.9 cm

19 13/16” / 50.3 cm 19 13/16” / 50.3 cm

13 1/2” / 34.3 cm 13 1/2” / 34.3 cm

9 1/2” / 24.1 cm 9 1/2” / 24.1 cm

15 11/16” / 39.8 cm 15 11/16” / 39.8 cm

68 lbs. / 30.8 kg 68 lbs. / 30.8 kg

November 2002 1 16022046 Rev. 0

(Replaces 16021522 Rev. 0)

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 power.

Illustration Component

Thermal cutout

Diode

Capacitor

Magnetron

Blower motor

Testing

Disconnect all wires from TCO.

Measure resistance across terminals.

Cavity TCO

Magnetron TCO

Discharge Capacitor

Remove diode lead from capacitor and connect ohmmeter.

Results

Opens at 243 ° F (117 ° C)

Closed at 180 ° F (82 ° C) and open at

280 ° F (138 ° C)

Infinite resistance should be measured in one direction and

50K

Ω or more in the opposite direction.

Reverse leads for second test.

NOTE: Ohmmeter must contain a battery of 6 volts minimum.

Discharge Capacitor

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

Also check between each terminal and capacitor case.

Discharge Capacitor

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

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

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 retest.

Remove all wires from motor.

Measure resistance across coil Approximately 14

Ω

2

6

1

4

4

5

2

3

5

7

8

2

5

7

Transformer

Filament

5

6

1

Primary

2

H.V.

Secondary

4

Interlock switch assembly

3

4

8

After verifing or replacing the module, reconnect wires to switch and check operation of monitor circuit before operating the oven.

Discharge Capacitor

Remove all wires from terminals.

Measure resistance from:

Terminal 1 to 2

Terminal 5 to 6

Terminal 4 to Ground screw on transformer stack

Disconnect wires to switch.

With door open measure resistance from:

Terminal 7 to 8 Monitor

Terminal 4 to 5 Primary

Terminal 2 to 3 Secondary

With door closed measure resistance from:

Terminal 7 to 8 Monitor

Terminal 4 to 5 Primary

Terminal 2 to 3 Secondary

Less than <1 Ω

Less than <1 Ω

Approximately 138 Ω  10426611

Approximately 78

Ω 

10426612

Indicates continuity

Infinite Ω

Infinite Ω

Infinite Ω

Indicates continuity

Indicates continuity

16022046 Rev. 0

(Replaces 16021522 Rev. 0)

2 November 2002

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 power.

Illustration

F

K

A

B

C

J

E

Internal Display

Graphics

Pin # 1

P1

F

K

A

B

C

J

E

P2

Pin # 1

Internal Display

Graphics

Pin # 1

P1

P2

Pin # 1

RFS9B / RCS10

TIME

ENTRY

STOP

RESET

START

MICRO DEFR WARM MEDHI POWER HOLD

TIMER

COOK

LEVEL

READY

CLOCK

6

7

4

5

1

2

3

8

9

0

RCS10MP

HOLD

0%

DEFROST

20%

MEDIUM

50%

MED-HI

70%

TIME

ENTRY

STOP

RESET

START

MICRO DEFR WARM MEDHI POWER HOLD

TIMER

COOK

LEVEL

READY

CLOCK

4

5

6

1

2

3

9

0

7

8

Component

P.C. board

Testing

At 8 pin connector:

Pin 1 (black) to Pin 3 (white)

Results

Relay 1 (blower relay)

Terminal C (black) to terminal J (blue)

Line voltage input to control transformer

Cook condition  0 volts

Idle condition



Line voltage

P.C. board

Relay 2 (cook relay)

Disconnect wires to terminals F and K and tape wires apart. Set multimeter to “Ohms” and attach meter leads to F and K.

Terminal F (orange) to terminal K (red)

At 8 pin connector:

Pin 1 (black) to Pin 3 (white)

Cook condition

Idle condition





Indicates continuity

Infinite

Ω

Line voltage input to control transformer

Relay 1 (cook relay)

Terminal F (black) to terminal K (blue)

Cook condition  0 volts

Idle condition  Line voltage

Relay 2 (blower relay)

Terminal C (black) to terminal J (brown)

Cook condition  0 volts

Idle condition  Line voltage

Output drive voltage to triac

Triac Gate to T1

Cook condition



0.9 VAC

Idle condition



0 volts

Touch panel assembly

Continuity is indicated as 100

RFS10S / RFS12S

7

8

5

6

3

4

1

2

9

10

11

Ω and below.

RFS10SW2 / RFS12SW2

MICRO DEFR WARM MEDHI POWER HOLD

TIMER

READY

COOK

LEVEL CLOCK

6

7

4

5

8

9

0

2

3

X 2

1

Pad

DEFROST

MEDIUM

MED-HIGH

TIME ENTRY

STOP/RESET

START

HOLD

Trace

6 & 7

5 & 7

4 & 7

7 & 8

4 & 8

4 & 9

3 & 8

6 & 8

8 & 10

7 & 10

6 & 10

5 & 10

4 & 10

3 & 10

8 & 9

7 & 9

6 & 9

5 & 9

RCS10MPS / RCS10MPSED /

RFS12MPS

Measurement

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

Continuity

MICRO DEFR WARM MEDHI POWER HOLD

TIMER

COOK

LEVEL

READY

CLOCK

MICRO DEFR WARM MEDHI POWER HOLD

TIMER

COOK

LEVEL

READY

CLOCK

Warm

1 Hot Sub

1

TIME

ENTRY

STOP

RESET

START

4

5

1

2

3

6

7

8

HOLD

0%

DEFROST

20%

Warm

2 Hot Subs

Warm

1 Cold Sub

MEDIUM

50%

MED-HI

70%

TIME

ENTRY

STOP

RESET

Warm

2 Cold Subs

Heat

(1) 6-Inch portion

(2.5 oz. Steak)

Heat

1 Ft. long portion

(2 x 2.5 oz. Steak)

Heat

2 Ft. long portions

(4 x 2.5 oz. Steak)

START

Heat

4 lb. pkg. Steak

2

3

4

5

6

7

8

9

HOLD

0%

DEFROST

20%

MEDIUM

50%

MED-HI

70%

TIME

ENTRY

STOP

RESET

START

4

5

7

8

1

2

3

6

Heat

2.5 lb. meatballs

+2/3 can sauce

X 2

9 0

X 2

9

0 0

November 2002 3 16022046 Rev. 0

(Replaces 16021522 Rev. 0)

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 power.

Illustration

Fault Codes

MT2

MT1 GA TE

Display

Component

Lamp receptacle

Lamp 41 W

Triac

F1

F2

F3

F4

F5

F6

−

−

−

−

−

−

Testing

.......................................................

.......................................................

.......................................................

.......................................................

.......................................................

.......................................................

Results

Replace H.V. / L.V. Board

Replace H.V. / L.V. Board

Replace H.V. / L.V. Board

Replace H.V. / L.V. Board

Replace Touch Panel

Replace H.V. / L.V. Board

Test continuity of receptacle terminals.

Indicates continuity with bulb

Measure resistance of filament.

installed.

Approximately 28

Ω

Disconnect wires to triac.

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

Measure resistance from:

MT1 to MT2

MT1 to Gate

MT2 to Gate

All terminals to ground

Infinite

Approximately 40

Infinite

Infinite

Ω or more

Disconnect wires to snubber.

Snubber Assembly

Wire Harness

Measure resistance across terminals.

Test continuity of wires

Infinite

Indicates continuity

12

13

14

15

16

17

18

19

20

21

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 bottom of 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 (20

°

C).

3. Place container on the center of the oven shelf and heat the water for 62 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.

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: 930  watts output using the traditional power test for model RCS10MP

+ 100  watts (1 magnetrons X 100 watts)

1030  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)

Temperature Chart

ONE MINUTE, THREE SECONDS run time chart for units less than 1550 Watts cooking power

Cooking

Power Output

∆

T Cooking

(°F) Power Output

∆

T

(°C)

Cooking

Power Output

∆

T

(°C)

Cooking

Power Output

464

504

542

580

620

659

697

736

775

814

22

23

24

25

26

27

28

29

30

31

852

891

930

969

1007

1046

1085

1124

1162

1201

7

8

9

10

11

12

13

14

490

560

630

700

770

840

910

980

15

16

17

18

1050

1120

1190

1260

16022046 Rev. 0

(Replaces 16021522 Rev. 0)

4 November 2002

Wiring Diagram and Schematic

!

WARNING

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

RCS10 P1324601M

RCS10MPSED P1324904M

November 2002

12512401

!

DANGER

HIGH VOLTAGE

RCS10MP P1324602M

RFS10S P1324701M

5

RCS10MPS

RFS9B

P1324902M

P1324706M

16022046 Rev. 0

(Replaces 16021522 Rev. 0)

Wiring Diagram and Schematic

!

WARNING

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

RCS10 P1324601M

RCS10MPSED P1324904M

16022046 Rev. 0

(Replaces 16021522 Rev. 0)

SCHEMATIC

CONDITIONS:

DOOR OPEN

FUSE

L

POWER

CORD

N

TCO

(OVEN)

4

2

8

INTERLOCK

SWITCH

SCHEMATIC

DOOR CLOSED

5

3

7

SECONDARY

INTERLOCK

SWITCH

3

2

MONITOR

SWITCH

8 7

TCO

(MAG)

1 3

OVEN

LIGHT

J

C

CONTROL

BOARD

CONTROL

CIRCUIT

RELAY

1

BLOWER

MOTOR

M

8

4 5

PRIMARY

INTERLOCK

SWITCH

7

F

RELAY

2

K

1

POWER

TRANSFORMER

2

FA

MAGNETRON

F

5 6

RES

4

CAPACITOR

RECTIFIER

12512401

!

DANGER

HIGH VOLTAGE

RCS10MP

RFS10S

P1324602M

P1324701M

6

RCS10MPS

RFS9B

P1324902M

P1324706M

November 2002

Wiring Diagram and Schematic

!

WARNING

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

November 2002

RFS10SW2

RFS12MPS

!

12512202

DANGER

HIGH VOLTAGE

P1324702M

P1324704M

7

RFS12S

RFS12SW2

P1324703M

P1324705M

16022046 Rev. 0

(Replaces 16021522 Rev. 0)

Wiring Diagram and Schematic

!

WARNING

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

SCHEMATIC

CONDITIONS:

DOOR OPEN

FUSE

L

POWER

CORD

N

TCO

(OVEN)

4

2

8

INTERLOCK

SWITCH

SCHEMATIC

DOOR CLOSED

5

3

7

SECONDARY

INTERLOCK

SWITCH

3

2

TCO

(MAG)

MONITOR

SWITCH

8 7

F

K

RELAY

1

C

RELAY

2

1 3

CONTROL

CIRCUIT

CONTROL

BOARD

J 8 7 B A

4 5

PRIMARY

INTERLOCK

SWITCH

TRIAC

OVEN

LIGHT

BLOWER

MOTOR

M

SNUBBER

1

POWER

TRANSFORMER

2

5 6

RES

4

CAPACITOR

FA

MAGNETRON

F

RECTIFIER

RFS10SW2

RFS12MPS

16022046 Rev. 0

(Replaces 16021522 Rev. 0)

!

12512202

DANGER

HIGH VOLTAGE

P1324702M

P1324704M

RFS12S

RFS12SW2

8

P1324703M

P1324705M

November 2002