BoilerFaultCodesWhat the manual says
Manufacturer manualHIGH SYSTEM PRESSURE
Shared across the Murelle System HE range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
DIY fix possible
Locate a radiator in your home that has a bleed valve.Place a cloth and a container underneath the valve to catch water.Open the bleed valve slowly to release air and water until the pressure gauge on the boiler drops to between 1 and 1.5 bar.Close the valve tightly and check the boiler display to see if the error has cleared.
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Related fault codes
All 25 fault codes on the Murelle HE System
Seeing a different code? Every code this model can display, in one place.