EE8 High
Your boiler's main control board has lost contact with the digital display or internal computer, meaning it can no longer send or receive instructions.
Technical description: Communication failure
Typical repair cost: £150-450 (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 EE8 — no call-out fees, no surprises.
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Parts commonly replaced
- Control PCB
- Display Interface
- Wiring Harness
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