BoilerFaultCodesYour boiler's internal components have stopped communicating with each other, meaning the central control unit cannot send or receive the signals needed to heat your home.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Bus communication error
What causes this fault?
This fault occurs when the data link between the boiler’s various internal computers is broken, preventing them from 'talking' to one another. The most common reason is a hardware failure in the main circuit board or a loose connection in the wiring that carries these digital signals.
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 61 — 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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