F61 – A61 High
Your boiler's internal computer brain has detected a serious electronic failure and can no longer control the heating software correctly.
Technical description: Printed circuit board (PCB) AGC01 error
Typical repair cost: £300-£550 (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 F61 – A61 — no call-out fees, no surprises.
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Parts commonly replaced
- Printed Circuit Board (PCB)
- Wiring Harness
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