BoilerFaultCodesYour boiler's main control panel is having trouble talking to the internal computer, which is preventing the system from starting up.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Communication error between fascia and control box – check cables
What causes this fault?
This fault occurs when the digital signals sent between the boiler's front display panel and the main internal computer are interrupted. The most common reason is a loose or damaged connection cable, though it can also happen if moisture gets behind the casing or if one of the electronic circuit boards has suffered a hardware failure.
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.
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