Model reference

Sharp R-CD1200M

Microwave

1 document35 error codes4 service modes

Available documentation

Service Manual

Service Manual RCD1200M Commercial Microwave Oven52 pg
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CC1 on my Sharp R-CD1200M

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Magnetron 1 (top) exchange time

From Service Manual 460929, p.21:

1.Access service mode to confirm the active fault code and read stored error history.

2.Measure control board supply voltage at test points. Expected: 12 VDC and 5 VDC.

3.Inspect all connectors on the main control for corrosion or backed-out pins.

Part WPW10804018

Electronic control board

Error codes (35)

CodeMeaning

CC1Magnetron 1 (top) exchange time information CC2Magnetron 2 (bottom) exchange time information CC3Exhaust fan motor exchange time information CC4Touch control unit/relay unit exchange time information EE1Failure of high voltage circuit 1 (magnetron 1 temperature fuse blown).EE10EEPROM error.EE11Life end of magnetron 1.EE14MG1 cooling fan lock judge (fan motor 1 locked/not running).EE15MG1 antenna rotation error.EE16MG1 thermistor open.EE17MG1 temperature too high.EE18Magnetron 1 microwave sensor fault.EE19No food detected in oven cavity.EE2Failure of high voltage circuit 2 (magnetron 2 temperature fuse blown).EE21Life end of magnetron 2.EE24MG2 cooling fan lock judge (fan motor 2 locked/not running).EE25MG2 antenna rotation error.EE26MG2 thermistor open.EE27MG2 temperature too high.EE28Magnetron 2 microwave sensor fault.EE29Exhaust thermistor open/short.EE3Failure of high voltage circuits 1 and 2 (both magnetron temperature fuses…EE31Life end of magnetrons 1 and 2.EE35MG1/2 antenna rotation error (both).EE38Magnetron 1 and 2 microwave sensor fault.EE39Small food load detected in oven cavity.EE4Too high input voltage.EE44Exhaust motor lock judge (exhaust motor locked/not running).EE54Life end of exhaust motor.EE6Melted contacts of relays.

View all 35 error codes

EE7Temperature too high detected by exhaust thermistor or magnetron thermistor…EE8Thermistor open detected (exhaust thermistor or magnetron thermistor); oven…EE81Life end of relays RY2/RY3.EE83Over current error.EE9Over maximum cooking time.

Service modes (4)

Special Function CUSTOM HELP (Model name and software date check)["Plug in the oven.","Within 20 seconds, press SELECT POWER.","Press SET MEMORY.","Press…
Special Function SF-2 (Check/clear/set using time or number of times)["Plug in the oven.","Within 20 seconds, press SELECT POWER.","Press SET MEMORY.","Press…
Special Function SF-4 (Error History)["Plug in the oven.","Within 20 seconds, press SELECT POWER.","Press SET MEMORY.","Press…
Special Function SF-6 (Exhaust Thermistor Check)["Plug in the oven.","Within 20 seconds, press SELECT POWER.","Press SET MEMORY.","Press…

Full entry steps, exit procedures, and test sequences are available in Max.

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