BoilerFaultCodesYour boiler has experienced an internal electrical error that has caused it to stop working for safety.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Boiler electr. system fault
What causes this fault?
This fault occurs when the boiler's internal computer system detects a communication failure between the electronic control board and its connected sensors or wiring. It is typically caused by a loose connection in the internal wiring harness or a critical component failure on the printed circuit board itself.
DIY fix possible
Press the 'Reset' button on the front control panel once.Wait up to 10 minutes to see if the boiler restarts normally.If the code persists or returns immediately, do not attempt further repairs and contact a Gas Safe engineer.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
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A boiler cover plan would cover faults like 2925 — 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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