What amp fuse do I need for a microwave?
Herein, what kind of fuse does a microwave use?
This is a 20-amp fuse, and is used to power your microwave. If the touch pad on the microwave becomes unresponsive, the microwave produces little to no heat, or the appliance simply does not turn on, it could mean that your fuse is at fault and needs to be replaced.
Furthermore, can I use any 20 amp fuse for my microwave? If a 20 amp fuse in a microwave keeps blowing, can I put in a breaker with more amps in? No, you need to have the microwave repaired or replaced. Fuses blow because of a short circuit. Putting in a bigger fuse or breaker only dumps more current into that short circuit, causing a fire hazard.
Then, how many amps do you need for a microwave?
Looks like a typical "1000 watt" microwave will require about 1700 watts of wall power. Dividing by 120 (volts), that would be 14 amps. For such a microwave, you better put in at least a 20 amp circuit.
How do I know if my microwave fuse is blown?
It's easy to tell if a glass fuse is blown; it will show scorch marks, and the filament will be melted. To check a ceramic fuse, use an ohmmeter or continuity tester. With an ohmmeter or multimeter, you should see a reading close to zero ohms if the fuse is intact, or infinite if it's blown.