BoilerFaultCodesWhat the manual says
Manufacturer manualCompressor Error
What causes this fault?
This fault occurs when the heat pump's compressor, which is responsible for moving heat into your home, fails to start or shuts down unexpectedly. It is typically caused by a communication failure between the internal electronics or an electrical fault within the compressor unit itself. When this happens, the system stops running to prevent further electrical damage to the expensive internal components.
This fault is more frequent during extreme cold snaps when the compressor has to work at its maximum capacity for extended periods.
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 J5E: no call-out fees, no surprise bills.
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