Your boiler has stopped working because its internal computer is unable to communicate with its gas control system.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Gas valve driver error – due to an internal failure.
What causes this fault?
This fault occurs when the boiler's main control board loses the ability to send instructions to the gas valve, which is the component that regulates fuel flow for the flame. The most common reason is an electronic failure within the circuitry of the printed circuit board itself, meaning it can no longer safely manage the ignition process.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like rE80 — 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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