Medium
None on Ideal HP290

Your heat pump is struggling to read the temperature of the internal cooling system, which prevents it from heating your water efficiently.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Plate Heat Exchanger Inlet Refrigerant Thermistor Error

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

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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