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Any tips on getting pressure into a Baxi 80 combi boiler ?

  • 19-03-2013 07:50PM
    #1
    MB Lacey
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭


    Any tips on getting the pressure back into my 7 year old Baxi Combi 80?
    I have hot water and heating, but no pressure at all when the hot water is turned on.
    The usual sequence of turning on the hot tap, waiting a few seconds with a slow flow, followed by a noise from the boiler as the pressure pump kicks in and the water from the tap gains pressure isn't happening.
    There's no pressure, just a slow flow.

    I've posted some photos to show pressure at 0, it stays here whether the heating is on or off.

    There's also a photo of the flexi pipe connected straight from (I assume) the house mains to the boiler and the black plastic tap, which I've already tried turning to allow some water in, but nothing happened - silence, no water entering at all.
    So I must be doing something wrong - any help much appreciated.
    Like I said the boiler is 7 years old, regularly serviced, though on the last service the guy said the pressure was very low.


Comments

  • #2
    DGOBS
    Hosted Moderators Posts: 3,496 ✭✭✭DGOBS


    Should be a filling loop between the DHW circuit and the CH circuit under the boiler, seems that it's been done with that flexi hose under the boiler, but I can't clearly see any isolation valve on it, and it's not done as normally on the eco80

    Why didn't your service guy sort this while there? afterall it is part of the service??


  • #3
    MB Lacey
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭MB Lacey


    DGOBS wrote: »
    Should be a filling loop between the DHW circuit and the CH circuit under the boiler, seems that it's been done with that flexi hose under the boiler, but I can't clearly see any isolation valve on it, and it's not done as normally on the eco80

    Why didn't your service guy sort this while there? afterall it is part of the service??

    Thanks DGOBS.
    Is there much difference between the flexi hose and a filling loop?
    There is a black plastic key at one end but nothing else to open/close.

    The service guy said we should probably get a plumber as it wasn't part of the gas boiler service, but more a plumbing problem, he could be right, it wasn't me who dealt with him.
    Think we're going to call a plumber, since I couldn't fix it on my own.


  • #4
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    MB Lacey wrote: »
    The service guy said we should probably get a plumber as it wasn't part of the gas boiler service, but more a plumbing problem, he could be right, it wasn't me who dealt with him.
    Where the hell are these guys found!!!!!!
    How did he refill the system after the service which includes draining the boiler to check the expansion vessel pressure?
    How does he refill the system after draining the boiler to change a part of the boiler on the wet side?
    What an absolute twat! It really vexes me when I hear of customers being ripped off like this.


  • #5
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    In answer to your predicament, on the end of the stainless steel flexible hose there is a slot that can be turned with a flat head screw driver. Turn this so that it is in line with the pipe to turn on and perpendicular when off. Open the black butterfly valve to allow into the system until the pressure reaches 1.5 bar max.
    Actually the black butterfly valve is open at the moment so close it first and then use this to control the water into the system.


  • #6
    MB Lacey
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭MB Lacey


    Thanks Shane, he was RGI approved gas man, not from board gais, but we reckoned he seemed ligit enough, website says family business since 1980 etc.

    Now you've highlighted above what should have happened, we will know for next time.

    I've just followed your instructions above, found the screw to turn in the same direction as the pipe and turned the butterfly valve, but still no sound of water running through the pipes.

    IMG_1106.JPG

    IMG_1107.JPG

    The fact that no water is coming through makes me think it's a bigger problem.


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  • #7
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Follow back to see where the pipe is being fed from. There maybe another valve somewhere. It should be fed off your mains supply but have seen then fed from all sorts!


  • #8
    MB Lacey
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭MB Lacey


    I followed the pipe to a cut out cupboard in the wall of the kitchen and the pipe leads to another pipe with another butterfly valve.
    Should I turn this to open and then repeat steps above?


  • #9
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    MB Lacey wrote: »
    I followed the pipe to a cut out cupboard in the wall of the kitchen and the pipe leads to another pipe with another butterfly valve.
    Should I turn this to open and then repeat steps above?
    Yes that's it


  • #10
    MB Lacey
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭MB Lacey


    Thanks for all your help on this Shane, but there was no water sound when I turned that new butterfly valve either.
    I turned the others in the same way as before as well, but nothing at all.
    Apparently the boiler guy was looking at things in the top cupboard when he was here, so maybe he has tried this too with no luck.


  • #11
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    MB Lacey wrote: »
    Thanks for all your help on this Shane, but there was no water sound when I turned that new butterfly valve either.
    I turned the others in the same way as before as well, but nothing at all.
    Apparently the boiler guy was looking at things in the top cupboard when he was here, so maybe he has tried this too with no luck.
    You will probably need a call out so. Each point of the connections will have to be cracked open to see if there is water reaching that point. Sounds very odd.


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  • #12
    MB Lacey
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭MB Lacey


    shane0007 wrote: »
    You will probably need a call out so. Each point of the connections will have to be cracked open to see if there is water reaching that point. Sounds very odd.
    Well, there was no water sound at all when that new valve was opened.
    I don't know if you can see in the last photo, but there is a tap behind the pipes, but I don't really want to go messing around turning that too.
    Thanks again


  • #13
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    That looks like your mains water stopcock so if that was off you would have no water in your kitchen sink.


  • #14
    MB Lacey
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭MB Lacey


    shane0007 wrote: »
    That looks like your mains water stopcock so if that was off you would have no water in your kitchen sink.
    Oh right, we have water in the house.
    Just one thing before you go, whilst I was doing all the turning of valves etc, I had the electricity supply to the boiler off and the boiler turned to 0 with no heating and no hot water taps running - I'm assuming that was correct?


  • #15
    .jacksparrow.
    Closed Accounts Posts: 5,428 ✭✭✭.jacksparrow.


    shane0007 wrote: »
    Where the hell are these guys found!!!!!!
    How did he refill the system after the service which includes draining the boiler to check the expansion vessel pressure?
    How does he refill the system after draining the boiler to change a part of the boiler on the wet side?
    What an absolute twat! It really vexes me when I hear of customers being ripped off like this.

    in all fairness Shane you don't have to be a qualified plumber to be an rgi,so you can't blame people if the rules don't state it.something rgi should be stricter on.


  • #16
    sullzz
    Registered Users, Registered Users 2 Posts: 2,409 ✭✭✭sullzz


    Is there a flat head isolation valve on the end of the flexi which is attached to the boiler , the same as the one in your pic which is in your hand , possibly at the back of the fitting


  • #17
    MB Lacey
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭MB Lacey


    sullzz wrote: »
    Is there a flat head isolation valve on the end of the flexi which is attached to the boiler , the same as the one in your pic which is in your hand , possibly at the back of the fitting

    No I've just checked and there's not.

    The boiler was just making really weird sounds, so I turned the 1st valve attached to the boiler back to the open position I found it in and the noise has stopped and everything is normal again.
    Well, we still dont have any pressure, but the boiler has stopped making the noise it was making when the 1st valve was closed, definite water sounds going on - but that sound from the boiler has given me a scare enough to not mess any more with it and just get a plumber in.


  • #18
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    On the second flexible pipe with the 3 way butterfly valve, is there another slot type valve at the other end of the flexi like the one under the boiler?


  • #19
    MB Lacey
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭MB Lacey


    shane0007 wrote: »
    On the second flexible pipe with the 3 way butterfly valve, is there another slot type valve at the other end of the flexi like the one under the boiler?
    Hi Shane, no there's not.


  • #20
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    MB Lacey wrote: »
    Hi Shane, no there's not.
    Sorry but nothing else I can suggest without you possibly getting wet!


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