BoilerFaultCodesYour boiler’s internal control system has encountered a critical electronic failure that it cannot clear itself.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Replace the control panel if the malfunction remains after a reset or if the malfunction has occurred before at this control panel.
What causes this fault?
This fault occurs when the boiler's internal computer experiences a major communication breakdown or a physical failure within its circuitry. The most common reason is that the electronic components on the main control board have worn out or suffered a voltage spike, preventing the boiler from safely managing the heating process.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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