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Hi i have problems with my central heating, having exhausted everything it basically cannot be fixed as the system is totally crap. if it turn the stat on the water tank to 0, water if forced to the radiators, when i turn the stat up water goes back to the boiler, this is the only way i...

hi guys, been a while, i replaced the pump and everything seemed to work fine, not much heat downstairs but upstairs worked well. well things are back to how they were now, the pump i am sure is fine. If i turn the thermostat on the hot water tank to 0, thus forcing the heating of the...

new developments new pump installed and upstairs radiators got hot along with HW. Downstairs got warm but v slow. i have set the hw to 0 to force CH on and now all and lovely and hot. so when i turn water back up it will no doubt cut CH to downstairs. Does this tell anyone...

yea, was thinking maybe the controller isnt quite correct, its something i need to investage further, maybe bite the bullet and get a plumber out to sort it

added a new pump today, i turned the thermasat on hotwater tank to 0 and all the radiators got hot, turned thermo back up to 55 and upstairs remind hot while down stairs got cool. Turned boiler of completely for an hour and turned back on, no radiators got warm, repeated turning hotwater stat...

thanks for all that, seem i have the boiler that jack built. however that all said it was working fine before the last few weeks, and that still doesn't explain why the radiators come on but then go off, but the feed pipe from the valve is still hot. could this not mean the pump is not...

HI sorry i was wrong about the postion which i think the valve is in. it was switch to allow the central heating on, as the pipe work got hot and the valve to in the nearest radiator got hot, but thats as far as it went, didnt get any hotter, in fact went cold, even thought the pipe work...

the 3 way valve is marked a-ab-b i assume when the spindle of the valve without the header is at ab then that allows water to both heating and water. i have the valve in the b postion at the moment and the pipe to the heating is getting hot, i need to recheck the if the heating is getting...

to me this sounds like what is maybe happening, i have a 3 way valve which you are quite correct in the way it should operate, but as i dont have the option for heating only i the vavle only ever opens to half way. i still think however that the pump is not working correctly

just been up to check, turned everything off and bleed the pump. its completely full. the pipe coming of the valve which must supply the radiators is hot, as is the one going to the water cylinder,but radaitors are cold. the pump is red hot too

HI Yes i have bleed the pump both running and not running. i never bleed it while while they were heating up. when i bleed it with it not running there is no air and the water comes out pretty quickly.

hi okay, i moved the valve to manual, ithe pump is always on 3. I turned the hot water tank thermo to 0, to enusre it didnt call for hot water. The radiators began to get hot up stairs, after about 10 mins they stopped heating up and cooled back down to cold.Downstairs did not get hot at all...

10 mm seems about right, but could the thing still be sheared i have an auto air breeder fitted so how can it be air locked?

actually going off my part number it is a 3 port mid valve "Honeywell 3 Port Mid Position Valve V4073A 1039 22mm" so how far would you expect this to turn, if i turn the thermostat up on the wall for the ch, the valve must open becasue the pipe which leads to the radiators gets hot, but...

hi thanks for that my timer/cpmtroller does not give me the the choice of heating only. All my controller does it to turn the boiler on, the thermatsat on the wall if turned up opens the valve for hot water to flow to the raditors.i believe the valve opens up to allow water into the tank...

i dont get a choice of hot water or heating. Its either hot water or both when i turn the thermastat on the wall up. all 3 sides of the valve seem to get hot, but the plumber says it may not be fully open

yes, when i turn the wall thermostat up the motor turns and the pipe from the 3 way valve to the radiator gets hot, but the plumber thinks this may not be fully open

hi, had a plumber round today as i have no hot water going to the radiators. the pump was new in january this year, but has began to make funny noises. the plumber thinks it may be faulty or that the valve maybe at fault thus causing air in the pump, hence the noise, he told me to remove the...