FA 364 Emergency
Your boiler has detected a potential internal gas leak during its safety checks and has shut down to keep your home safe.
Technical description: Gas valve EV2 leak test failed – gas valve leak
Typical repair cost: £280-450 (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 FA 364 — no call-out fees, no surprises.
*Affiliate links — we may earn a commission at no extra cost to you. Prices shown are starting prices.
Parts commonly replaced
- Gas Valve
- Printed Circuit Board (PCB)
*Affiliate links — we may earn a commission at no extra cost to you.