BoilerFaultCodesYour boiler has detected an issue with its electrical grounding system, which is a safety feature that prevents electrical faults.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Earth connector error
What causes this fault?
This fault occurs when the boiler's internal computer loses its physical connection to the electrical earth, which is a vital safety link. The most common reason is a loose or corroded wire within the boiler's internal harness, or a component failure on the main circuit board that prevents it from verifying the circuit is safe.
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 432 — 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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