E05 High
Your boiler has stopped working because the internal fan, which safely exhausts fumes, is not spinning correctly or cannot be detected by the system.
Technical description: Fan failure – boiler cannot detect fan rotation – check fan operation and both connectors onto fan
Typical repair cost: £250-£450 (including labour)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Protect yourself from future repair bills
A boiler cover plan would cover faults like E05 — no call-out fees, no surprises.
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Parts commonly replaced
- Fan assembly
- Main PCB
- Wiring harness
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