BoilerFaultCodesTechnical description
Inverter High Current
What causes this fault?
This fault occurs when the brain of the heat pump detects a sudden electrical spike or excessive strain on the internal motor. This is usually triggered by a faulty control board sending the wrong signal or the compressor drawing too much power because it is struggling to start. In some cases, a loose electrical connection or moisture on the wiring can also cause this safety shut-down.
This fault can be more frequent during extreme heatwaves or cold snaps, when the system has to work at its maximum capacity for long periods, putting more stress on the electrical components.
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.
Find a Gas Safe engineer
Search the official register →