Question about GE Spacemaker JVM1640SJ Microwave Oven
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Posted on Jan 02, 2017
SOURCE: GE JVM1440 Spacesaver Microwave
You can fix it without the aid of a repairman. Simply unplug the microwave and remove the outer casing. There should be a few screws around the bottom edge and back panel. Once you have the unit open, look for where the power cord comes in. There should be a circuit board with a fuse mounted to it. This is your input line filter. The fuse should be a 20 amp appliance fuse that you can pick up at any hardware store (Lowe's and Home Depot both carry them). DO NOT op test with the outer casing removed. Potentials of about 14,000 volts are present in the high voltage network of a microwave oven. Close the unit up BEFORE you power it back up. Let me know if this helps.
Posted on Aug 11, 2007
Generally, the most common causes of a failure to heat are:
- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part
If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and
disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383
There should be a very helpful "mini-manual" hidden inside the unit behind the control panel.
Please write back with more details if you need further help.
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Posted on Dec 04, 2007
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
Sadly, GE does not make individual parts available for these controllers, so they cannot be repaired.
You have to replace the control panel sub-assembly (part number WB07X10733 in your case) and the best price I've found on that is $370.32 here (compared to $483.25 direct from GE).
In my opinion, this does not do much to inspire brand loyalty...
Or you may be able to find a whole oven on eBay for about that or less.
Sorry to bear bad news. Good luck.
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Posted on May 30, 2010
This is usually caused by a "Blown" magnetron, and or the High power Diode And YES, putting metal inside the MW, will cause it to fail.
You need to get a "Quote" for any repair, as the repair may cost nearly as much, as new unit. Also the new unit will have a warranty.
Posted on Jul 21, 2010
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