F7
Miele
Relay or Power Module Fault
F7 displayed; oven may not heat or may shut down unexpectedly; sometimes associated with relay clicking.
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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
Stuck heater relay on power module, Burned relay contacts, Faulty power electronics module, Overcurrent damage from shorted heating element
How to Fix / Troubleshooting
Safety: Turn off power at the breaker. High‑current circuits are present—do not work live.
- Visual inspection: Access the power module (relay board). Look for burned spots, cracked solder joints, or melted relay housings.
- Check heating elements: Test each oven heating element (bake, broil, grill) for shorts to ground with a multimeter. Replace any element that shows continuity to chassis.
- Inspect wiring: Check element wiring for insulation damage or signs of arcing.
- Replace power module: If elements and wiring are good but F7 persists, replace the power module/relay board with the correct Miele part.
Due to the risk of fire and shock, relay and power module work is best handled by a qualified technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Power Module / Relay Board
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