Zanussi Intermittent Power Loss to Control Board

Microwave clock resets or display blinks after each use or when opening/closing the door.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Loose mains connection, Faulty internal fuse holder, Cracked solder joint on power input, Failing low-voltage supply on PCB

Safety first: Unplug the microwave.

Check plug and outlet: Ensure the plug fits firmly and the outlet is not loose.
Inspect internal connections: With the cover removed, check the mains terminal block, fuse holder, and wiring for looseness. Tighten as needed.
Examine PCB: Look for cracked solder joints around the power input and transformer; resolder if necessary.

Hard 4/5

Main Control PCB

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