Hello, My CFMV156DCD over the range microwave stopped working properly (i.e. the turn table stops turning and there is no fan noise or heating). I checked the four door switches and found one was faulty. After replacing that switch, the light inside the microwave is constantly on regardless of whether the door is open or closed and the unit still does not work. One odd behavior is that during opening/closing the door, there is a split second when the light flickers (goes out and immediately comes back on). Not sure what to think at this point. Any expert advice would be greatly appreciated. Cheers, A.M.
SOURCE: My Frigidaire microwave stopped working while cooking food.
All lights are operational. Model number is FMV156DBC.
SOURCE: Frigidare FMCB115Gc Has power won't start up
Could be a blown fuse in the HV transformer primary circuit,bad connections to the magnetron filament,open thermal protector or thermal fuse,
SOURCE: Our microwave will not cook when the door is
please dont even try this, fix it yourself job!!! yes it is an easy fix!! if you know what you are doing,, but if you dont know what you are doing,,,, well to be blunt,
you could just be finding a fast way of killing yourself!
even with the power plug pulled out the wall scocket and stood on a rubber mat!!! just one tuch across the capacitor and you could very well grow wings!!!!!!!!!!!!!!
do you realy wont to die??? call the guy back to fit a new micro switch in the door lock as its set back deep in side the unit and its a cheep part as well
but just like all fixes,,, its not the parts you pay for,
its knowing how to fit them in that costs you so much
this not knowing could cost you your life???????
play it safe,, please,,
Testimonial: "Thank you for your input! I did not know about the capacitor and how lethal it could be. I'm glad that I asked before attempting the repair! Thanks"
SOURCE: Servicer with a PLMV169DCD Fuse blowing Problem
For future reference, we regularly repair such control
boards and displays for
customers nationwide by mail for $39.95 postpaid in about a
week or so with a one-year guarantee.
Here's the main service manual. Other versions are here and here.
It may be grease inside one of the switches or arcing conductors (usually due to opening the door while it's cooking) making it sticky.
This was made by Sharp, so the side panel should come off each interlock switch for inspection.
But looking at the schematic, the monitor switch cannot come into play under normal circumstances unless the door is shut and the secondary interlock (relay RY2 on the control board) is closed and (oddly, if the published schematic is to be believed) if the oven lamp relay RY1 is closed .
Everything seems to point to a bizarre problem like maybe an intermittent short of a wire to the chassis, perhaps where a wire passes through a hole or guide in the sheet metal.
Also, you might consider unplugging the hood vent motor and trying it.
Did you try it with the oven powered from another outlet?
Also be sure the neutral and hot are not reversed at the outlet and that the line voltage is correct.
Sometimes a loose neutral can be a factor. Test outlets in several area of the house to see if some are high and some are low. This can be dangerous, and the power company must be called.
If there is anything else on the same breaker, that can be a factor.
Good luck!
We're
happy to help you with free advice and we'd appreciate your
thoughtful rating of our answer.
William E. Miller
[email protected]
http://www.microwavedisplay.com
SOURCE: I have a Frgidaire microwave
The unit normally draws about 13 amps of current when it's running, so it's not unusual for the wires to get warm.
A bad bottom door switch is very common in these units.
Once it's fixed, make sure no one opens the door while it's cooking. That causes premature switch failure.
Tell them to hit the "stop" pad first.
More info here:
http://031d26d.namesecurehost.com/mwd/doorsw.txt
Your model's base service manual is at our site here.
We're
happy to help you with free advice and we'd appreciate your thoughtful
rating of our answer.
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 conneciton on the control unit circuit board
- bad magnetron or other high voltage part
At our site, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information.
See our listing here on FixYa: http://tinyurl.com/yzjozk
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