F14 High
Your boiler has detected a problem with the internal fan, meaning it cannot safely vent exhaust gases and has stopped working for your safety.
Technical description: Fan problem – tachometer signal interrupted fan connection. Fan damaged or debris in fan – check the wiring, the fan and clean debris
Typical repair cost: £220-£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 F14 — no call-out fees, no surprises.
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Parts commonly replaced
- Fan assembly
- Fan wiring harness
- Printed Circuit Board (PCB)
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