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Mend Glowworm Light Second Problem

glowworm swiftflow?

the low system pressure light is flashing about once every second and the pressure is ok what is the problem?

marco
December 2005
flow switch needs cleaning or replacing

mike
December 2005
the low water pressure s/w is either faulty or blocked drain boiler remove and clean turn of power for 10 seconds to boiler to reset

john arundel
December 2005

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