Several months ago, my LG microwave oven (LMV1680WW) tripped its dedicated circuit breaker. After pulling the plug, circuit breaker became active, but when plugged back into outlet, breaker then tripped. Several hours later, when power was again connected to microwave oven, breaker did not trip and oven worked properly. The condition repeated itself today, but I'm not able to restore power to the oven without the breaker tripping repeatedly and so far, has not re-set itself as it did on the first instance. Any help, suggestions?
The magnetron probably has a partial short pulling more current than normal as it runs, the other two items that give trouble is the high voltage diode, "sometimes cracks" to the high voltage capacitor, "usually shorts"
SOURCE: Model #JES2251SJ02 trips immediately 20
I called Public Service and they suggested either a dedicated line or upping tha amps of that c-breaker. I need to call an electrician to help me decide which is best for my house.
SOURCE: kenmore microwave model 665.61629100
20amp fuse above the control panel.. but behind the vent grill..
SOURCE: kenmore microwave model 665.61629100
Usually, when your microwave oven doesn't work it all, the internal fuse (thermal fuse) is blown. This fuse protects both you and the oven. When it blows, you need to have a qualified appliance repair technician replace it.
Door switch
If the fuse isn't the problem, check the door hooks and the door-release button. When these are broken, the door switch doesn't activate, so the oven can't work.
SOURCE: GE jvm187osf02 microwave loses power
It may be a blown fuse or the thermal cutout (T.C.O.) or thermostat on the magnetron or on top of the oven cavity.
There
should be a "mini-manual" (tech sheet) hidden inside the unit
behind the
control panel or hidden on the left side behind the grille, which is
very helpful when troubleshooting, testing, and locating
components.
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.
You can find
helpful exploded view diagrams and order parts by entering your full
model number from the tag on the oven here.
Accessing some
components
(especially the oven cavity thermostat) for testing and possible
replacement will require you to remove the oven from the wall and take
off the outer 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.
You can
download GE
owner's manuals and installation instructions here.
Feel free to contact me directly (and please remind me of your
full model number from the tag on the unit) for more
information & help.
We're
happy to help you with free advice and we'd appreciate your thoughtful
rating of our answer.
William E. Miller, AS-EET
[email protected]
http://www.microwavedisplay.com
Microwave Oven Control Panel Repair Nationwide
SOURCE: microwave trips circuit breaker when plugged in
The circuit is probably a 20Amp circuit (see the number stamped on the circuit breaker switch). Most likely, it is the same circuit as the refrigerator, crock pot, window A/C unit, etc....
Also, if you are using an extension cord or a power strip or a surge protector. Those may not have a high enough power rating.
One other possibility (not likely) is that the circuit breaker is a 15Amp and the microwave is 1500 watts.
What else is cut off when the circuit breaker is tripped?
Solution is to use a different outlet for the microwave, or turn off any other applicance in the same circuit (except the refrigerator, of course).
Hope this helps!
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circuit breaker is good; circuit wiring, outlet is good. something appears to be shorted in the microwave; any ideas?
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