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Sharp R-1850A Convection/Microwave Oven - Page 6 Questions & Answers
Sharp Half Pint Microwave Display Not Working R-120DS
the LCD is bad, 22 year later a great run that.use flash light to it , see data there that means backlamp deadbuy new one.THERE IS NO LCD FUSE EVER. it used low powerfrom he PCB (display drive logic is there only)the PCB may have fuse or onboard solid state fuse. that self resets if shorts are removed.if you see no fuse there, F1 F2, etc there is none.!use the flash light test. first.. OK??SO DOES OUR POST MEAN , ONLY lcd dead, BUT BOTTONS NOT DEAD and most beep, so beeps dead? see buttons with programmed times, like pop corn etc, do those work?LCD dead sure makes time set hardbut gee, hit time 11 and run,see if 11s seconds, runs the fan and Uwave maggycooks for 11 seconds. blind./lots to test there before giving up.OK only LCD is dead.
Sharp R-CD2200M Microwave Maintenance Mode CC1,2,&3 magnetron hours exceeded.
If it shuts down it is faulty.
Take it in for professional repair. They are too dangerous to work on. There is 125,000 volts in the capacitor just waiting for you to get near it. The magnetron will make you blind in about 15 seconds and the core is a poisonous heavy metal. It is a $2,190.00 commercial microwave so worth getting repaired professionally. It must have earned its money.
Service Manual, and note:
WARNING TO SERVICE PERSONNEL: Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in a severe, possibly fatal, electrical shock. (High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..)
Sharp CD2200M Service manual ' Manualzz
https://manualzz.com > Sharp > microwaves > CD2200M
TopPage RCD2200M SERVICE MANUAL S2801RCD22MP COMMERCIAL MICROWAVE OVEN MODELS R-CD1800M R-CD2200M In the interest of user-safety the oven should be
Sharp carousel model smc1840cs
Probably only a 90 day warranty but you should have 1 year on parts. Check to see if it will void the part warranty if you open the unit. Or just take to authorized dealer. Sounds like the control board is out. This is part of the keyboard where you enter commands and also contains the clock. There are components on that board which can be replaced, but if it’s still got the warranty on that board you are entitled to a new one. Labor cost is not covered. Also, if you don’t currently use a spike protector on the power cord, please use one ongoing. This greatly reduces the chance of a repeat of the same problem even with another unit. Hope this helps you.
How do I get it to reset?
Disconnecting from the power is the only Reset you have on a microwave. It sounds like it needs professional service.
Where can I get glass Turntable for Sharp Microwave Oven model R-390H(R)
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