CONNECTION High
Your boiler's main control screens are unable to talk to the internal computer, meaning the system cannot receive instructions to provide heating or hot water.
Technical description: No communication with the PCB
Typical repair cost: £180-450 (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 CONNECTION — no call-out fees, no surprises.
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Parts commonly replaced
- Main PCB (Printed Circuit Board)
- Display Interface
- Wiring Harness
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