E384 Emergency
Your boiler thinks a flame is burning even though the gas should be turned off, which causes it to shut down for safety.
Technical description: Flame detected when gas valve off (false flame)
Typical repair cost: £120-350 (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 E384 — no call-out fees, no surprises.
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Parts commonly replaced
- Flame sense electrode
- Gas valve
- Printed Circuit Board (PCB)
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