Hi. Got a problem with my combi boiler its a glow worm 24 ci.
F9 fault is flashing immediatley on start up which in the manual says system pressure switch is faulty but also the pump the runs constantly. Intermittenly sorts itself out with the pressure reading 1.5 bar then goes back to f9 with a clicking noise I think coming from pcb but not sure. A little while ago was doing this alot going from f9 with pump running then back to normal. Even got enough hot water out of to do the washing up!
Got my suspicions on the main pcb board.
Thanks. Geoff
F9 fault is flashing immediatley on start up which in the manual says system pressure switch is faulty but also the pump the runs constantly. Intermittenly sorts itself out with the pressure reading 1.5 bar then goes back to f9 with a clicking noise I think coming from pcb but not sure. A little while ago was doing this alot going from f9 with pump running then back to normal. Even got enough hot water out of to do the washing up!
Got my suspicions on the main pcb board.
Thanks. Geoff