BoilerFaultCodesYour boiler's internal communication system is failing to connect with other smart controls or external heating modules.
This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.
Technical description: Without LON communication module
What causes this fault?
This fault occurs when the boiler's main control center loses touch with the specialized communication module that talks to your smart thermostats or external heating components. The most common reason is a loose internal connection cable or a hardware failure within the communication module itself, preventing the system from synchronizing your heating demands.
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 76:0 — no call-out fees, no surprises.
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