BoilerFaultCodesYour heat pump has stopped working because its internal electrical system has detected repeated power surges or excessive electrical demand.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Inverter High Current (L1E/L11/L12) 3 times within 60mins
What causes this fault?
This fault occurs when the electrical component that drives the compressor detects that it is drawing too much power, forcing the system to shut down to prevent damage. The most common reasons are a malfunctioning inverter board that can no longer regulate current or an internal electrical failure within the compressor itself. In some cases, external power fluctuations or loose wiring connections can also trigger this safety response.
This fault is more common during summer months when higher outdoor temperatures can cause the compressor to work under increased pressure, leading to higher electrical demand.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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