Rangemaster Intermittent Power or Control Supply Fault

Dryer display and lights flicker or reset during operation; sometimes the cycle stops and restarts.

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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

Loose mains plug or socket, Loose internal terminal block connections, Failing mains interference filter, Faulty power supply section on main PCB

How to Fix / Troubleshooting

Safety first: Unplug the dryer before checking internal connections.

  • Check plug and socket: Ensure the plug fits firmly in the socket and there is no sign of overheating or arcing.
  • Inspect terminal block: Remove the rear cover and check that all terminal block screws are tight and wires are secure.
  • Check mains filter: Inspect the mains interference filter for signs of swelling, cracking, or burning. Replace if suspect.
  • Control board inspection: Remove the top cover and inspect the main PCB for dry joints or burnt components in the power supply area. Board-level repair is not usually recommended; replace the PCB if damaged.
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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB
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