BoilerFaultCodesWhat the manual says
Manufacturer manualInternal fault
From this model's manual
Verified against the Vokera Mynute Vhe installation & service manual, page 25.
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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