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Old 12-28-2008, 09:29 AM   #1
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Central Heating Problem


Hi All,

Can anyone offer any further advice please: I can get the upstairs radiators in all bedrooms, bathrooms and en-suite operating correctly but the downstairs radiators are mainly cold, luke warm at best.

If I turn down the upstairs radiators to their minimum setting I can get a better response from the downstairs radiators but, by no means as hot as they should be, some hotter than others, some even cold. The pump appears to be running normally and the pipes above and below the pump are too hot to touch when the boiler is running.

I have tried the following: Flushed the complete system with a hired flushing and cleaning device, I also used the pump systems in built heater to send hot water to every radiator on the system individually. I have bled the system that many times I have lost count, no significant air in the system. Opened the drain tap at the lowest point, with the pump running, no significant response.

I do not have a combination or condensing boiler fitted and the system is a sealed system.

thanks in advance

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Old 12-28-2008, 12:41 PM   #2
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Central Heating Problem


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Originally Posted by BackBoiler488 View Post
Hi All,

Can anyone offer any further advice please: I can get the upstairs radiators in all bedrooms, bathrooms and en-suite operating correctly but the downstairs radiators are mainly cold, luke warm at best.

If I turn down the upstairs radiators to their minimum setting I can get a better response from the downstairs radiators but, by no means as hot as they should be, some hotter than others, some even cold. The pump appears to be running normally and the pipes above and below the pump are too hot to touch when the boiler is running.

I have tried the following: Flushed the complete system with a hired flushing and cleaning device, I also used the pump systems in built heater to send hot water to every radiator on the system individually. I have bled the system that many times I have lost count, no significant air in the system. Opened the drain tap at the lowest point, with the pump running, no significant response.

I do not have a combination or condensing boiler fitted and the system is a sealed system.

thanks in advance
" Opened the drain tap at the lowest point, with the pump running, no significant response " Are you saying that no water will drain out? Usually, if the drain is opened, along with a bleeder upstairs, water will gush out! If its not, there must be a blockage somewhere!

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Old 12-30-2008, 08:20 AM   #3
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Central Heating Problem


Sorry, my bad explanation, water does gush from the drain tap
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Old 12-30-2008, 10:57 AM   #4
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Sorry, my bad explanation, water does gush from the drain tap
In that case, perhaps the circulating pump should be taken apart and examined for wear or blockage!
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Old 12-30-2008, 01:31 PM   #5
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Central Heating Problem


OK thanks will take a look
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