BoilerFaultCodesYour heat pump's internal power control system has encountered a fault, meaning the outdoor unit cannot communicate properly with the compressor to provide heating or hot water.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Inverter Error
What causes this fault?
This fault occurs when the internal electronics that manage the compressor's power supply fail to regulate the electrical flow correctly. It is usually caused by a technical failure on the inverter circuit board or loose internal connections that prevent the system from getting the energy it needs to run.
This fault can be more frequent during summer or heatwaves, as high ambient temperatures place additional thermal stress on the electronic power components.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Could it be time for a new boiler?
If repair costs are adding up, a new energy-efficient boiler could be the smarter long-term choice.
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