E02 High
Your boiler thinks a flame has started when it shouldn't have, usually caused by an electrical glitch or a faulty sensor signal.
Technical description: False flame – possibly a problem with the power supply
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 E02 — no call-out fees, no surprises.
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Parts commonly replaced
- Flame sense electrode
- Printed Circuit Board (PCB)
- Ionisation lead
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