It's obviously an enclosed system that is completely full of water, otherwise beelding the rads would do the trick. You have no choice but to let the pressure out somehow - there is normally a stopcock somewhere near the lower part of the boiler or pipework. You need to get something to drain into - a brush pan, say, or a watering hose out into the garden, dependant on the amount.
I have found that on most sytems the pressure drifts down slowly over time, so you could probably leave it. I have had mine running over 2 1/2 for short periods. If it's a modern boiler it should have low and high threshold alarms and safety cut-outs - so if it runs it's probably OK.
If in doubt, be safe, and pay up!
2007-02-09 02:07:26
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answer #1
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answered by steveb9458 2
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You need to make sure that the fill loop is off. Its the braided hose that links the system to the water main, in fact i would remove the hose from the connections.
If you still have a problem then i would say the expasion vessel is knackered.
When the heating system heats up you will get a pressure rise, but 3 bar is a bit high and if this is the case, if it has been that way for a while it may dammage the expansion vessel
2007-02-09 10:03:44
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answer #2
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answered by Glenn M 4
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follow on to the other question eh ?
So, assuming you let it bleed for a while ( take a couple of pints out ) and the pressure was still up ?
Then you are probably connected to mains pressure. There should be a link cable between the cold inlet and the sealed system./ Ensure this valve is closed and disconnect the hose ( its normally a flexible steel braided one)
Once you have seperated the system from the mains, bleed the rad again.
cheers.
2007-02-09 02:28:47
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answer #3
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answered by Michael H 7
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Turn the release on the safety valve to let the excess pressure out. Or just wait, it will go down over time anyway.
2007-02-09 02:43:26
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answer #4
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answered by jayktee96 7
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let it cool down
is there a drain plug near the filler tap ?
if not, keep bleeding a rad
2007-02-09 02:02:21
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answer #5
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answered by Anonymous
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check your pressure switch is working right , it should have compensated for it it self , to bring the level back down
2007-02-09 02:05:08
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answer #6
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answered by smart arse 2
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you must bleed your first rad and
so on and check your bar reading
every time dont fill so fast?
2007-02-09 02:07:15
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answer #7
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answered by S Csparky 6
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