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Old 05-28-2012, 02:13 AM
denman denman is offline
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denman is a splendid one to behold

Yes they can be replaced if you can find the correct one.

Some of them just clip in others require taking the unit apart.

As a test I would just remove it and see if it still arcs.
If it requires taking the unit apart I would just carefully cut it and remove it from inside the oven.
This is just for testing, do not run the unit like this.
Try heating up some water with a loose cover do not let it come to a full boil.

If it still arcs then either the magnetron or it's control electronics are bad and I would replace the unit.

If it does not arc then hunt up a replacement and install it.

If you have to take the unit apart be very, very careful.
Many older units do not discharge the high voltage when the unit is off/unplugged so you can get a nasty shock or worse.
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