BoilerFaultCodesYour boiler's internal computer is receiving the wrong information about its own identity, preventing it from running safely.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Coding resistor fault
What causes this fault?
This fault occurs when the boiler's main control board cannot verify which specific model it is installed in, usually due to a loose or faulty identification chip. The most common reason is a hardware failure in the small coding resistor or a communication breakdown on the main circuit board itself.
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 F.92 — no call-out fees, no surprises.
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Could it be time for a new boiler?
If repair costs are adding up, a new energy-efficient boiler could be the smarter long-term choice.
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