potterton combi 80 boiler heating comes on and off ?
potterton combi 80 boiler heating comes on and off / pump runs when hot tap is turned on ( its recently had the PCB Modulation board replaced ) has anybody got any idea`s
There does not seem to be many heating engineer`s on this site
Mark
October 2008
Hi no dripping tap but the pump runs when hot tap is put on the pump does run the central heating but you can here a bit of water noises and a couple of rads don`t get warm when the boiler stays on for a short time ive been told diverter valve ? or pump ?
Mark
October 2008
Have you got a dripping hot tap which is enough to affect the heating
Could try turning of main stop cock off just in case to prove
a
October 2008
I can answer this question...
potterton combi 80 boiler heating comes on and off ?
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