F019 High
Your boiler has encountered an internal communication error between its main control boards, causing it to shut down for safety.
Technical description: BMM error
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 F019 — no call-out fees, no surprises.
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Parts commonly replaced
- Burner Management Model (BMM)
- Internal Wiring Harness
- Display PCB
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