E.04 – .17 High
Your boiler has detected a serious problem with its internal gas system and has shut down as a safety precaution.
Technical description: Permanent fault. Problem with gas valve or defective gas/air unit.
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 E.04 – .17 — no call-out fees, no surprises.
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Parts commonly replaced
- Gas Valve
- Printed Circuit Board (PCB)
- Gas/Air Unit
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