Hi
My boiler CH heats up to a point then cuts out, possibly coming back on an hour or so later. It will come on if I turn on the hot tap but then clicks off again. Everything seems to be ok, spark, gas valve, fan.. but it clicks off.
There are no error/fault lights. Hot water works ok.
Has been suggested pump stuck or faulty water pressure switch. Any ideas please?
led showing gas valve issue(9 fashes),but have no voltage to pump,fann runs all the time though, would this be directly a PCB error?
derek
November 2013
I had a similar problem with my Morco feb 24e - the boiler fired up ran for a few seconds on either hot water or central heating, then made a loud wooshing and banging noise and the whole system cut out and would not reset until the unit cooled down. Local plumber on the site claimed it was the the thermistor on the central heating side. The problem was actually the water pump which was not running efficiently - I replaced the pump with a spare one from Morco and had no more problems. I think the central heating water pump must run even for hot water only, to circulate water through the central heating heat exchanger to prevent it boiling or something similar...
Robert Staines
March 2013
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