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- 24 Jan 2004
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Hi Guys,
I have asked a few questions lately which a few of you have kindly helped with, thank you.
I have a Potterton Puma 80 Combi Boiler with a Myson Pump feeding 8 rads (4 up, 4 down). The heating has been off since last winter and after being put back in to use is barely working. I have always had difficulty getting the downstairs rad furthest from the boiler to stay warm. If i turn off all other rads it will heat up but as soon as i put another rad on anything more than luke warm the furthest one goes off. The house is absolutely freezing. However i try and balance i can not get more than a couple of rads to stay even warm.
All rads are bled and appear free of air. I have tried bleeding the pump through the big black hex bolt in the middle and can get a very small amount of water from there but little else. The aav is open and appears to be functioning. Expansion vessel isn't letting in water. System has been drained, EV pressurised to 1.5 bar, system refilled.
Any ideas? Could there be an airlock, if so how can i shift it? May it be sludge build up?
I have spent hours searching and am willing to search more if pointed in the right direction, but saying that please explain as much as possible.
Thanks in advance.
I have asked a few questions lately which a few of you have kindly helped with, thank you.
I have a Potterton Puma 80 Combi Boiler with a Myson Pump feeding 8 rads (4 up, 4 down). The heating has been off since last winter and after being put back in to use is barely working. I have always had difficulty getting the downstairs rad furthest from the boiler to stay warm. If i turn off all other rads it will heat up but as soon as i put another rad on anything more than luke warm the furthest one goes off. The house is absolutely freezing. However i try and balance i can not get more than a couple of rads to stay even warm.
All rads are bled and appear free of air. I have tried bleeding the pump through the big black hex bolt in the middle and can get a very small amount of water from there but little else. The aav is open and appears to be functioning. Expansion vessel isn't letting in water. System has been drained, EV pressurised to 1.5 bar, system refilled.
Any ideas? Could there be an airlock, if so how can i shift it? May it be sludge build up?
I have spent hours searching and am willing to search more if pointed in the right direction, but saying that please explain as much as possible.
Thanks in advance.