Question about Microwave Ovens
F33 is usually a code indicating a faulty ground to the control board.
The usual culprit is the top screw that holds the control panel assy in place. Remove that screw, clean around the screw hole and lightly sand the area to insure a good ground. If you have one, install a star washer on the screw, replace, and tighten really well.
That will usually fix your problem!
Posted on Jul 23, 2008
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