2925 V High
Your boiler has stopped working because it cannot properly communicate with the internal valve that controls the gas flow.
Technical description: Feedback from the modulating gas valve is too low
Typical repair cost: £180-£350 (including labour)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Protect yourself from future repair bills
A boiler cover plan would cover faults like 2925 V — no call-out fees, no surprises.
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Parts commonly replaced
- Modulating gas valve
- Wiring harness
- Main PCB (Control board)
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