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GE Hotpoint Over-the-Range Microwave Questions & Answers
Hotpoint overrange microwave, all the lights and
It sounds like the magnetron may have
either failed or is not being supplied with the extremely high
voltage required to run it.
Make sure the !!!!capacitor is
discharged!!!!! before attempting any sort of repair.
Check
the door interlock switches first then the high voltage diode with
either an AVO model 8 on high resistance range for short circuit, the
capacitor can fail and go short circuit, the feed fuse on the primary
of the high voltage transformer and then finally, the magnetron is
best checked by substitution.
Hope that helps.
Hotpoint RVM1535DMCC OTR micro-has NO stove top draft.
Did you check the installation instructions and the owner's manual?
You can download GE
owner's manuals and installation instructions here.
If you still have a probme, I would call the GE Answer Center:
GE Answer Center®
1-800-626-2005
Monday - Friday: 8 a.m. - 10 p.m. ET
Saturday: 8 a.m. - 7 p.m. ET
Closed Sunday.
We're
happy to help you with free advice and we'd appreciate your
thoughtful rating of our answer.
I've got a GE Advantium 120/Model ZCS1001KSS01, the display will get lines thru it, and comes in and out of view, and will always finish its cycle. however, when you go back to use, it is dead.
The problem with your Display of your GE Microwave/Speedcooker is not the Digitron WB27X10856 display board? The flickering and ultimately failure over of the display is due to the WB27X10861 GE microwave control board which is a rebranded (LG 6871W1A417/6871W1A417A board) which GE then sells as a markup. The princple purpose of this board is to convert (i.e. rectify) AC to DC at various voltage levels needed by the rest of the microwave to run their control circuits in the microwave. A portion of the GE microwave is always on so the AC/DC supplly is always on. Overtime the electrolytic capacitors in a section of the board fail or degrade to a point they the DC suppy starts to produce ripples in the DC power supply which results in circuit board failures. These ripples produce deep spikes of voltage of 120 Hz that the other circuits are sensitive too. I just exmined a failed WB27X10861 board and measued the capacitance of each of the seven electroylic capacitors. Of the 7 capacitors, 2 had failed over time. The others 5 have degraded 10 to 15 percent but still within their design spec. The two that failed, C07 - 1000uF 25 V had a measured value of 207uF and the other C08 - 220uF had a measured value of 13uF. There was no visible bloating on either SAMWHA SG capacitor. Nomally, these capacitors are rated at 2000 hour at 85 degree C. 2000 hr is only 83 days, but since the voltage is less and the temperature is probably 40 to 50 degrees inside the capacitor these capacitors may last 10 years. They harder they work the shorter the lifespan. There are two solutions, either purchase a new replacement control board or replace the failed C07 and C08 capacitors within the failed board with better ones. You can easily buy 10,000 hour , 105 degree C rated capacitors for probably 25 cents more than 2,000 hour capacitor. Most people don't have the resouces to repair a board so buying a new board is their only solution. Don't buy a used board on ebay because a used board is probably on the verge of failure.
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