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Hi everyone i have a potterton puma 80 the hot water works fine but the central heating wont work from the external timer. if you switch to constant it works ok, but is on all the time. i have changed the timer (new) and even changed the main circuit board. i also checked the switch which is...

it was the diverter valve actuator that had stuck new one £65 uk gas supplies brighouse thanks to all

Hi guys Thanks for all your input it was the diverter valve actuator that had failed i bought a new one from uk gas supplies in brighouse for £65 +vat did the trick Thanks again for all your help Paul

i took the cover off the front and had a look. thie first thing i saw was a sticker saying thay it was a HE30 not HE24. i think that the diverter valve is stuck as the water to the valve is hot and the water after the valve is cold. the valve clicks when it tries to work, im going to take the...

ill check the diverter valve tomorrow when i get back. ill let you all know what happens. Paul

the boiler will fire momentarily if the system has been reset by using the breaker on the consumer supply Paul

if you reset the boiler by turning off the main supply (breaker) the boiler will start ( i hear sounds) the light flashes quikly then after about 15 seconds the sounds stop and the light flashes slower. the light flashes for as long as you want to watch it. as soon as the hot water is turned on...

i have a ideal isar he24 condensing combi boiler with a heating fault. the hot water is fine- no problems. but when the heating is due to come on the 'c' appears in the window but the light just flashes, there are no fault codes and the water pressure is set to 1 bar as stated in the book...