E18
Bush
General Safety Circuit Fault
Bush dryer displays E18 and may not start or may stop with a beeping alarm; sometimes linked to door or safety circuits.
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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
Open thermal fuse in heater circuit, Faulty door safety interlock chain, Broken wiring in safety loop, Defective safety input on control PCB
How to Fix / Troubleshooting
Safety first: Disconnect from mains before testing continuity on safety devices.
- Check thermal fuse: Locate the non-resettable thermal fuse on or near the heater housing. Test for continuity. Replace if open, and investigate causes of overheating (blocked airflow).
- Inspect door safety wiring: Trace the wiring from the door switch through any safety thermostats back to the PCB. Look for breaks, burns, or loose connectors.
- Test door switch again: Even if the door appears to close, confirm the door switch operates correctly with a multimeter.
- Repair wiring faults: Use proper insulated connectors and heat-shrink to repair any damaged wires in the safety loop.
- If E18 persists: The safety input circuit on the main PCB may be defective, requiring board replacement.
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Repair Difficulty
Hard
4/5
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