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Baxi Combi 133HE Plus

Discussion in 'Plumbing and Central Heating' started by adrian007uk, 31 Jul 2012.

  1. adrian007uk

    adrian007uk

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    Hi, i am after some help please with my Baxi Combi 133HE plus.

    I inherited this boiler when i moved into my house. Over the winter the pressure gradually dropped to under 1. I got an engineer out to service the boiler. He did some tests and topped up the pressure and said everything is fine.

    The pressure has dropped to under 1 again. I have had a look at topping the pressure up myself. All of the pictures or diagrams i have seen have shown two taps that need to be opened when attached to the filling loop. On my boiler i do not have any of the plastic taps. The connectors are brass. Also my filling loop is attached to my boiler but from what i have read this should not be permanently attached - the engineer did not highlight this as a problem.

    I can take a picture if it helps to show you what i mean.
     
  2. Terry7556

    Terry7556

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    adrian whether the taps are plastic or brass does,nt matter much as long as they open to allow water through and then close again.99% of the filling loops are still connected to their boilers
    see if you have any damp patches under radiators because the water is going somewhere, maybe out the copper pipe that is on the outside wall in the area of your boiler. the water you are losing is going somewhere
     
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  4. adrian007uk

    adrian007uk

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    Hi Terence

    Thanks for replying. Right, so i am losing pressure because i am losing water?

    I did monitor if the radiators were leaking but i did not notice anything. The house is carpeted so i think i would find any damp patches. I will investigate outside and see if i can see the copper pipe you mention and see if that is leaking.

    When we moved in the pressure was fine but over the winter it slowly dropped. The engineer came and serviced the boiler and topped up the pressure in January but it has now dropped again so it's not doing it quickly which is why i thought if i top it up it may be fine.

    When i did some research on topping up the pressure all the boilers seemed to have taps of some kind. Even the boiler manual displays taps. I may not have communicated it well in my previous post but my system does not seem to have taps of any kind. I have attcahed a picture to show you.

    Where the taps should be there are two screws. Am i supposed to use a screwdriver to losen them off to act as the tap?

     
  5. Terry7556

    Terry7556

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    yes you are losing pressure cos you are losing water.
    yes use a screwdriver for those type of valves
    good luck mate
     
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