Panasonic NN-S554WF. Bumped open door hard. Result = blown light globe. I can replace globe but will I need to replace fuse?

SOURCE: Panasonic Microwave inverter oven model,

10 Amp fuse blown inside oven.

SOURCE: Terminal connector to the door switch overheated & fuse blown

Just cleaning is not enought.The terminal is loose and that isusually the problem most of the time.Replace them with new ones and I think you be happy.

SOURCE: Panasonic NNA554W blows 10a fuse when microwave comes on

Possibly the interlock monitor switch is bad or out of adjustment. This switch is designed to create a short circuit across the power line (and then blow the fuse) if you attempt to defeat the door interlock and operate the oven with the door open. A shorted capacitor or diode could also cause the fuse to blow. Because of lethal voltages inside and the possibility of microwave leakage if repairs aren't done correctly, you are best off leaving microwave service to professionals.

Barry Beadman

• 7 Answers
• Posted on Jun 02, 2010

SOURCE: Panasonic NN-C980B stopped working. Blown fuse.

Sometimes when the mag shorts it takes out the inverter. I would measure the mag leads to ground and they should be open or 20M or so. If you have both a mag and inverter bad it's probably time for a new oven.

SOURCE: My Panasonic model NN-S763BF 1350watt

the safety door switch is in series with this switch,the micro switch is to blow this fuse to make sure the unit will not operate with the door open for radiation safety issues,after slamming this door repeatedly you have finally made the circuit to blow this safety fuse as its mean't to do,you need to re-align these door switches (2 or possibly3) interlok switches,then have the unit checked for leakage around the door seal for safety with a "Holiday-cone type sensor radiation meter" to be sure the door is positioned correctly after repairs