F.63 High
Your boiler's computer memory has suffered a technical glitch, meaning it can no longer remember its own settings and cannot operate.
Technical description: EEPROM error
Typical repair cost: £280-450 (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 F.63 — no call-out fees, no surprises.
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Parts commonly replaced
- Main Printed Circuit Board (PCB)
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