How Can You Tell If A Microwave Fuse Is Blown. So before going to the troubleshooting procedure lets have a look at the causes or reasons of why your microwave keeps blowing fuse. If the display shows the needle at zero or the digital display shows zero the fuse is in good working condition.
With an ohmmeter or multimeter you should see a reading close to. Look at the fuse wire. You can congratulate yourself on a job well done.
If the fuse is definitely blown go to step 6.
In this video I explaining how to diagnose and fix common issues with microwave like blows fuse or doesnt heat instead replace whole microwavemicrowave rep. It will show scorch marks and the filament will be melted. If your microwave oven suddenly stops working the problem may be the fuse. Once you have located the fuse remove any necessary wires and fasteners to free it from the microwave.
