Hoover
No Mains Power / Control Board Supply Failure
Washer-dryer combo will not power on at all; no lights or display
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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.
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Possible Causes
Blown mains fuse or tripped breaker, Faulty power cord, Defective mains filter (EMI filter), Failed main control board power supply
How to Fix / Troubleshooting
Safety: Before opening the appliance, unplug it. Never work on live circuits.
- Check outlet and fuse: Test the wall socket with another appliance. Check and replace the plug fuse (UK) with the correct rating if blown.
- Inspect power cord: Look for cuts, burns, or kinks. Replace the cord if damaged.
- Access mains filter: Remove the rear panel and locate the mains interference filter where the cord enters. Check for burn marks or bulging components.
- Test continuity: With a multimeter, verify continuity from the plug to the filter output and then to the PCB. Loss of continuity indicates a failed filter or wiring.
- PCB power supply: If mains reaches the PCB but there is no display, the low-voltage power supply on the board may have failed. This typically requires PCB replacement by a professional.
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Repair Difficulty
Hard
4/5
Required Part
Mains Interference Filter
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