BoilerFaultCodesWhat the manual says
Manufacturer manualInternal fault
Shared across the Mynute range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
What causes this fault?
This fault occurs when the boiler's internal computer chips lose the ability to speak to one another, effectively causing a 'brain freeze' within the system. The most common reason is a hardware failure on the main circuit board, where an electrical component has worn out or short-circuited.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Related fault codes
All 20 fault codes on the Mynute Vhe
Seeing a different code? Every code this model can display, in one place.