Three year old Samsung microwave has stopped heating. Controls are working, turntable rotates, fans blow, but no heat.
I have seen many warnings not to attempt mending a microwave due to the high voltage that can be stored in the HV capacitor. However, my understanding is that this capacitor can be safely discharged using something with good insulation such as a pair of pliers with insulated handles.
I also understand how to check various components using a meter:
I have seen many warnings not to attempt mending a microwave due to the high voltage that can be stored in the HV capacitor. However, my understanding is that this capacitor can be safely discharged using something with good insulation such as a pair of pliers with insulated handles.
I also understand how to check various components using a meter:
- fuses (mains, HV) - continuity tester
- HV capacitor - continuity between terminals, and between terminals and body. Resistance between terminals
- HV diode - measure voltage when connected to a 9v DC source, test voltage across terminals using both polarities to check it is only passing current in one direction.
- HV transformer - check continuity of windings to each other and to case
- Magnetron - check continuity between terminals