Wolf No Power / Dead Boiler

Boiler will not start at all, no display or lights

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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 fuse in fused spur, Tripped circuit breaker, Loose mains connection at boiler, Failed internal power supply on PCB

How to Fix / Troubleshooting

Safety: Electrical work should be done by a competent person. Do not open sealed electrical compartments if you are not qualified.

  • Check mains supply: Verify that other electrical devices on the same circuit work. Reset any tripped breakers.
  • Inspect fused spur: Replace the fuse with one of the correct rating if blown.
  • Check boiler power switch: Ensure the boiler’s own on/off switch is in the ON position.
  • Technician tasks: If still dead, a professional should test for voltage at the boiler terminals and replace the PCB if its power supply has failed.
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Repair Difficulty

Medium 3/5

Required Part

Main Control Board (PCB)
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