I have the GE Profile Spacesaver 1800XL over the range microwave. It runs (loudly), but does not heat. I have had this microwave since July, 2007. When I called GE, I was told it could be something other than the magnetron and I would be responsible for any parts and yet, they could not estimate those costs. Should I forego trying to repair and opt for a new unit?

William Miller

• 9179 Answers
• Posted on Oct 22, 2007

SOURCE: Spacesaver 1800XL Screeching or Grinding Noise

Is it possible that some spray cleaner got into the controls?

I always recommend that users spray cleaner on a soft cloth then wipe the control panel.

Otherwise, the spray can get into the controls and lock it up or make it act odd.

If it does not dry out over itme, it may need to be manually dried or blown out.

But the keypad or control unit may be damaged.

Please post back with more details so we can help further.

SOURCE: GE Spacesaver over the range microwave oven

GE Microwave ovens, and Microwave Ovens produced by GE but released under different brand names, have had several power problems for the past 20 years. Because it is so easy to sell parts and charge outrageous rates for repair GE never corrected the problems. They just continued it in the next model. They found that you would most likely purchase a new unit rather than paying $75. for a service charge, and $150. for labor plus parts (if out of warranty period).
Most failures were cold solder connections on the power relay board. These would come completely dis-connected after arcing and burning away the solder. Could be 1 month, could be years, but they knew it would happen. This power relay board feeds 120volts to the LV (low voltage) side of the HV (high voltage) Transformer. No High Voltage,,No cook. Everything seems to run normal, but if you listen carefully you will not hear the low tone from the HV Transformer. Over my thirty years in the business I have re-soldered rather than replace so many I couldn't count.
Next to that, a defective Magnetron.

SOURCE: GE PRofile Microwave runs but no heat

This is a sure sign that the magnatron needs replaced ( This is what heats the food!) replace and all will be good again!
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SOURCE: GE Profile Microwave will not heat

Unfortunately, there is no way to tell which part the microwave needs without opening it up for examination. There are a few parts that, if defective, would prevent the oven from heating.

• a high voltage transformer which passes energy to the magnetron
• a magnetron which converts high-voltage electric energy to microwave radiation
• a magnetron control circuit (usually with a microcontroller)

SOURCE: F3 Message given from my GE jvm1650wb008 Microwave!

WATTAGE AND CU.FT IS UP TO YOU. JUST MAKE SURE WHAT YOU GET FITS LIKE THE OLD ONE DID DIMENSIONS WISE. THE HIGHER THE WATTAGE THE FASTER THEY COOK AND HEAT FOOD UP.