BoilerFaultCodesYour heat pump has stopped working because it has detected an issue with a internal sensor that monitors the pressure levels within the system.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: High Pressure Sensor Error
What causes this fault?
This fault occurs when the system's internal safety sensor detects that the pressure levels have exceeded safe operating limits or if the sensor itself has failed. The most common reason is a restriction in the water flow through the unit, often caused by a blockage or a pump failure, preventing heat from being moved away quickly enough. It can also be triggered by an electrical fault where the sensor is unable to send a reliable signal back to the main control board.
This fault is more common during the first cold spells of autumn and winter when the system is under higher load after being idle during the summer.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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