BoilerFaultCodesYour boiler is experiencing a communication or configuration error between internal electronic boards that prevents it from starting correctly.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Temporary fault code (Refer to section 7.10)
What causes this fault?
This fault occurs when the boiler's internal electronic brains stop speaking to each other. The most common reason is a communication failure between the main control board and the display panel, often caused by a loose wire or a failing circuit component. Because the two boards cannot confirm the boiler's safety settings, the system shuts down as a precaution.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A boiler cover plan would cover faults like 31 — no call-out fees, no surprises.
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