BoilerFaultCodesWhat the manual says
Manufacturer manualInverter Error
What causes this fault?
This fault occurs when the heat pump's internal brain, which controls the speed of the motor, detects an electrical irregularity or a component failure. The most common reason is that the inverter board has suffered a breakdown or the compressor is drawing too much power, causing the system to ship down for safety.
This fault is more common during peak winter months when the heat pump is working at its highest capacity and the electrical components are under the most stress.
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.
Avoid the next call-out bill
A cover plan would handle faults like LC8: no call-out fees, no surprise bills.
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