F029 High
Your boiler is unable to safely control the flow of gas required for ignition and operation, causing the system to shut down.
Technical description: Gas valve error
Typical repair cost: £180-350 (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 F029 — no call-out fees, no surprises.
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Parts commonly replaced
- Gas Valve
- Ignition Lead
- Main PCB
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