Gorenje
Short Circuit or Overcurrent on Start-Up
Microwave trips the household circuit breaker or blows a fuse when starting.
Advertisements
Safety Warning
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.
Advertisements
Possible Causes
Shorted high-voltage capacitor or diode,Shorted magnetron,Shorted mains filter,Pinched or damaged internal wiring
How to Fix / Troubleshooting
Safety: Do not repeatedly reset breakers; this can be dangerous. Unplug the microwave immediately.
- Check outlet and circuit: Confirm that the microwave is on a suitable circuit and not sharing with other heavy loads.
- Visual inspection (qualified persons): Remove the cover and look for burnt components, melted insulation, or arcing marks, especially around the HV capacitor, diode, and mains filter.
- Component testing: Test the HV capacitor and diode for shorts, and check the magnetron for low-resistance shorts to ground. Replace any shorted component.
- Wiring repair: Repair or replace any damaged wiring harnesses.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
High-Voltage Capacitor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements