Question about Microwave Ovens
My OTC microwave shuts down after heating food/liquid after a period of time. Unit turns back on after a time cooling. I know the internal Magnatron fan is not working/running, so I belive the Magnatron may be overheating - not sure.
If it is the fan, should I consider having a technician repair the unit, or should I just by a new unit (past warrenty)?
Should I attempt to replace the mag. fan myself?
I have the same problem, but only with popcorn. Is it the fan or mag.?
Mty Magic Chef microwave was shuutting down after less than a minute due to overheating. The underside light also was nt functioning. The internal cooling fan was not operating which led to the magnetron overheating. I tested the cooling fan which tested good. After tracing the wires and connections I removed the circuit board/keypad which is held on by a single screw on the front of the oven. I removed each of the various plugs and connectors so I was left with just the circuit board and control panel. Remove the 4 screws that attach the circuit boad to the control panel andthe two parts easily separate. On the rear of the circuit board were obvious burn marks and there were two circuit board traces damaged. I then used my trusty soldering iron and soldered a small piece of wire where the damaged traces were. Apparently pressing on the front control panel too hard can bend the plate which then contacts the circuit board causing a short. I placed a piece of cardboard behind the circuit board when I reassembled it to prevent further shorting.
Posted on Jan 16, 2012
You absolutely need the magnetron cooling fan to be working, or the magnetron will be destroyed!
It is part # 3511800100 and you can order it for less than $20 here.
Far less than a magnetron.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Sep 01, 2008
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Posted on Jan 02, 2017
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