High
LC6 on Ideal HP290

Your heat pump has stopped working because its internal computer board is having trouble communicating with or powering the compressor.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Inverter Error

From this model's manual
Verified against the Ideal Hp290 installation & service manual, page 94.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

What causes this fault?

This fault occurs when the heat pump's main control system loses the ability to properly manage the compressor, which is the 'heart' of the machine. The most common reason is an electrical failure within the inverter circuit board or a breakdown in the wiring that provides power and instructions to the compressor.

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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