BoilerFaultCodesWhat the manual says
Manufacturer manualInverter Error
From this model's manual
Verified against the Ideal Hp290 installation & service manual, page 94.
What causes this fault?
This fault occurs when the heat pump’s brain is unable to send signals to the motor that drives the heating process. It is usually caused by a physical failure of the internal electrical circuits or a loose connection that prevents the system from regulating the power needed to run. In some cases, it can be triggered by a sudden electrical surge or moisture getting into the control casing.
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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