BoilerFaultCodesTechnical description
Overcurrent Protection Error
What causes this fault?
This fault occurs when the heat pump’s internal sensors detect an electrical current that is too high, causing the system to shut down to prevent a fire or permanent damage. The most common reasons are a malfunctioning inverter board that can no longer regulate power or a mechanical failure in the compressor or fan motor that causes them to pull excessive electricity.
This fault can be more frequent during summer heatwaves, as the system has to work harder to reject heat, which can cause aging electrical components to overheat and draw more current.
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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