Question about Microwave Ovens
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Posted on Jan 02, 2017
In many brands, there is a "mini-manual"
hidden inside the unit behind the control panel or hidden on the left side
behind the grille, which is very helpful when troubleshooting, &
At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.
Some questions to help you or someone you know troubleshoot it:
When you hit "Start" to microwave, do the inside light, cooling fan, and turntable all come on?
If not, then you probably have a bad door switch or door switch mount and should see these files:
If the inside light, cooling fan, and turntable are all coming on, then the problem is in the high voltage section, and then the next questions arise:
Any unusual noises? Is it louder or quieter than usual?
We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are operating here.
A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet the mag can be bad without that sound.
If there's no unusual noise, it may just be a bad connection at the magnetron.
Here are some links you or someone you know can use (in order given) for high voltage section test help, but read the safety warnings first:
(if it is NOT shorted or burned looking, it's probably fine)
(continuity can be good even though mag is bad!)
Accessing some parts may require you to pull the oven from the wall and remove the cover.
If so, the installation instructions are very handy, and it's best to have
two people since the microwave can be heavy and awkward.
For more help from Magic Chef / Ewave see here or their contact page or order parts here.
You can download owner's manuals for many Magic Chef models here.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Dec 07, 2009
HI. This is , indeed, an issue within the touch pad circuitry. it is damage, and will require replacement. I have located a replacement touch pad. Use the link below to access the touch pad. You can order the pad on-line, by clicking the link below.
Posted on Dec 23, 2009
No! there is no reset, the power surge has more than likely damaged the keypad controller, and on the back is a circuit board that has the microprocessor with additional components that controls the vital areas of the microwave oven. If that is gone, it is cheaper to replace than to repair.
Posted on Feb 06, 2011
Testimonial: "thanks for your info."
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