H.02 – .02 High
Your boiler's internal computer brain hasn't been set up with the correct identity settings, so it doesn't know how to operate correctly.
Technical description: Temporary error – no input of parameters C1/C2. Printed circuit board (PCB) not configured.
Typical repair cost: £100-£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 H.02 – .02 — no call-out fees, no surprises.
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Parts commonly replaced
- Printed Circuit Board (PCB)
- Configuration Plug
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