A fuse in a microwave can blow due to several reasons, including electrical overload, a short circuit, or a malfunctioning component such as a diode or magnetron. Overheating caused by blocked vents or a malfunctioning cooling fan can also contribute to the fuse blowing. Additionally, using the microwave with metal objects or damaged wiring can create a surge that may cause the fuse to fail. Regular maintenance and proper usage can help prevent these issues.
There must be a short in the system somewhere that causes the fuse to blow.
The fuse is there to protect the wiring in your home not the microwave. Using a larger fuse than required for the wiring causes a fire hazard. You can end up burning your home down. Use only the fuse recommended.
Only if you want to blow up the microwave. That will let 20 amps go through before the fuse blows when the manufacture is telling you 18 amps max. <<>> Yes, you can use the 20 amp fuse. At 250 volts 2 amps is no problem and you are not going to blow up the microwave. On a fault current the 20 amp fuse will trip just as fast as an 18 amp fuse.
A microwave fuse does what any fuse does. It protects both the microwave and the building's electrical from surges and short-outs.
This is the starter fuse I am talking about. It doesn't blow every time. It might go weeks before it blows again.
to many plugs in at once or old circuits ECT.
A microwave fuse does what any fuse does. It protects both the microwave and the building's electrical from surges and short-outs.
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Ck the heater fan motor resistor .
Need to know which 20 Amp fuse is blowing.
What Causes Any Fuse to "Blow?"The cause is what fuses were invented and are used for:to detect and protect against SHORT CIRCUIT conditions, and /or CIRCUIT OVERLOAD conditions.
Tail light assembly short