Question about GE Spacemaker JVM1640SJ Microwave Oven
My first GE spacesaver just like this one lasted for 17 years. I
have had this one for 5 and it just stopped heating. It turns
onlike normal but nothing every heats up or defrosts. Any
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.
Posted on Jan 25, 2008
G.E. uses what I have called the worst Magnatron available. The number on the bottom is OM75P The unit will run normally and the mag generally doesnt short, so you get no loud pronounced hum, it just doesnt heat. The whole unit must come down off the wall and be completely disassembeled to replace the mag. For the cost of the mag and labor, unless you think you can do it yourself. I would suggest replacing the unit. New ones have come down so much in cost. And get whole new warranty too. If the mag is bad prob need new diode too.
Posted on May 01, 2017
Update: I ordered a magetron from someone with an ebay store for about $43 with shipping already included (was a part from a display model but with moneyback guarantee). I installed it and microwave works! Thanks, Totalwreck for saving me hundreds of dollars!
Posted on Feb 17, 2008
94% of the problems with ALL microwaves is the magnatron. i guarantee it!!!!
Posted on Jan 06, 2008
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Posted on Jan 02, 2017
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