L5 High
Your boiler has been manually reset too many times in a short window of time as it tries to clear a persistent underlying fault.
Technical description: 5 boiler resets in 15 minutes
Typical repair cost: £0-120 (including labour)
DIY fix possible
Turn the power supply to the boiler off at the fused spur switchWait for 30 secondsTurn the power back on to clear the lockout memory
Protect yourself from future repair bills
A boiler cover plan would cover faults like L5 — no call-out fees, no surprises.
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Parts commonly replaced
- None (Software reset)
- Ignition Electrode
- Flame Sensing Electrode
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