01 · BEFORE BOOKING
A simple check.
Check that the microwave is in a cooking mode, not a timer-only or demonstration mode. Follow the model manual and never run it empty.
02 · UNDERSTAND THE SYMPTOM
What it could mean.
Several internal components can cause a no-heat condition. Symptoms alone cannot identify which one has failed.
03 · THE NEXT STEP
When diagnosis helps.
I assess the fault, model and installation type to discuss whether repair makes sense compared with replacement.
This is general guidance, not a diagnosis of your appliance. Follow the owner’s manual for your exact model. Internal electrical, gas and refrigerant work belongs with a qualified professional.
Manufacturer reference: Read the relevant care / troubleshooting guidance ↗