L2 High
Your boiler has failed to light several times and has shut down for safety, meaning you currently have no heating or hot water.
Technical description: Ignition lockout
Typical repair cost: £100-£350 (including labour)
DIY fix possible
Check if your gas supply is active by testing another gas appliance like a hob.Check if your condensate pipe (the white plastic pipe outside) is frozen or blocked.Reset the boiler by turning the control knob to 'Reset' and holding for two seconds.
Protect yourself from future repair bills
A boiler cover plan would cover faults like L2 — 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
- Ignition electrode
- Flame sensing probe
- Spark generator
*Affiliate links — we may earn a commission at no extra cost to you.