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Boiler pressure queries
lrr_2
Posts: 945 Forumite
worcester bosch 25si problem
boiler approx 6 years old and had heat exchanger replaced a few years ago.
operating at approx 2.5 - 3 bar (should be between 1 - 2.5)
heating and water coming on but hearing boiler firing-up approx every 5-10mins
when switched off pressure going to below 1 within 1 hour so not sure what it is when it switches on in the morning but would not be surprised if it is at 0!
checked all radiators and no leaks , cold bits and have all been bled.
no water leaking from pipe outside
At a total loss to what it is and dont want to leave it in case it turns into something serious!
Have heard people talking about filling air back into system via a bicycle pump?
Any help would be gratefully received!
As I am a student cant afford to pay out for something unless totally necessary.
HELP!!!!!!!!!!!!!!!!!!!!!!!!
boiler approx 6 years old and had heat exchanger replaced a few years ago.
operating at approx 2.5 - 3 bar (should be between 1 - 2.5)
heating and water coming on but hearing boiler firing-up approx every 5-10mins
when switched off pressure going to below 1 within 1 hour so not sure what it is when it switches on in the morning but would not be surprised if it is at 0!
checked all radiators and no leaks , cold bits and have all been bled.
no water leaking from pipe outside
At a total loss to what it is and dont want to leave it in case it turns into something serious!
Have heard people talking about filling air back into system via a bicycle pump?
Any help would be gratefully received!
As I am a student cant afford to pay out for something unless totally necessary.
HELP!!!!!!!!!!!!!!!!!!!!!!!!
0
Comments
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Good morning: Possibilities include filling loop letting by or perforated heat exchanger.
HTH
CanuckleheadAsk to see CIPHE (Chartered Institute of Plumbing & Heating Engineering)0 -
If filling loop was staying open would the pressure not stay up when switched off instead of dropping? Surely I cant be needing another heat exchanger? Last one was just replaced approx 4 years ago.0
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I thought possible pressure release valve not opening and closing properly?0
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Hi..Take a look at these FAQs ....if you can't find the answer, then post your query on the DIYnot plumbing & heating forum.
You're welcome;)
HTH
CanuckleheadAsk to see CIPHE (Chartered Institute of Plumbing & Heating Engineering)0 -
thanks for the help.
looks like its the pressure vessel needing re pressurised
is this easy to do?
found the nossle for cycle pump0 -
Just an update
Repressurised the expansion vessel myself and working like a dream now!
Probably just saved myself a fortune on a plummer!0
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