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Parkray Caprice help needed

Discuss Parkray Caprice help needed at UK Plumbers Forums; I have a Parkray caprice coke fire and has been serving us well for over 30 years, however I was having some walls skimmed and needed to remove a radiator, ...
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    Default Parkray Caprice help needed

    I have a Parkray caprice coke fire and has been serving us well for over 30 years, however I was having some walls skimmed and needed to remove a radiator, this is when my problem started. I had to drain the system and cut the radiator valves off, no big deal, had the wall skimmed and put the radiator back on. When the system filled up again I bled the radiators, downstairs first, and then the upstairs, put the fire on and the three upstairs radiators that are all gravity fed don't even get warm. I have put the pumps on and downstairs are all red hot, but the upstairs three are all still cold. Any help would be appreciated, no plumber speak though as I wont understand some of it.

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    Default Re: Parkray Caprice help needed

    Sounds like you have an air lock on the gravity side, there is a old school way of clearing this but not recommended has a DIY fix, have you thought about getting upstairs radiators connected to pump ? or is there a reason why this cant be done ??

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    Default Re: Parkray Caprice help needed

    Thoughts:- With the valves off, were open pipes covered so plasterer couldn't drop muck in them
    Are new valves 22mm and are lockshields fully open.

    If satisfied with above. Tie up ballcock in F&E, drain off to reduce water to just above outlet.
    Attach hose from drain off point to mains pressure tap and back fill F&E tank to overflow level.
    With 28mm pipe on the gravity each metre of pipe holds 1/2 litre of water so just 10 litres of water will clear a lot of pipe.
    Last edited by joni os; 28-12-2016 at 06:05 PM.

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    Default Re: Parkray Caprice help needed

    Is the hot cylinder still getting heated?
    Also, - does the small expansion tank (that feeds the heating system) fill water in when you were letting water into the radiator. You could test this by draining a little water from a drain point or rad to test.

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    Default Re: Parkray Caprice help needed

    New valves were attached before plaster work, and lockshields are open. I will try the tip you suggest, I had heard of this before but hadn't tried it.

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    Default Re: Parkray Caprice help needed

    Quote Originally Posted by Best View Post
    Is the hot cylinder still getting heated?
    Also, - does the small expansion tank (that feeds the heating system) fill water in when you were letting water into the radiator. You could test this by draining a little water from a drain point or rad to test.
    Yes water is filling in the expansion tank

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    Default Re: Parkray Caprice help needed

    Quote Originally Posted by jtsplumbing View Post
    Sounds like you have an air lock on the gravity side, there is a old school way of clearing this but not recommended has a DIY fix, have you thought about getting upstairs radiators connected to pump ? or is there a reason why this cant be done ??
    Is that the back flush?

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