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Baxi 105 he

Ive lost pressure so have no hot water or anything how do i get the pressure back?

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  • bobugdoo Sep 10, 2008

    disconected the filling loop and turned the water back on . The water came out of the filling loop but is not going into the boiler .Can anyone help?

  • Philly Bobs Dec 10, 2008

    I have the same problem with my Baxi 105HE and the local installer has said that I must have a leak around the heating pipework and to check the radiators. I have checked them all, and no leaks are evident. There is no water coming out of the overflow pipe but there is out of the condensate pipe - which I have been told is normal. I have to fill up the pressure to at least 2.0 twice a day to get the boiler to start and it drops down to 1.0 after a few minutes and remains there until heating goes off and gradually drops down to zero, so effectively will not come on via the timer. If the unit is set to Hot water only, you can see the needle dropping down gradually until it reaches zero. If the hot water is used it goes up a few small notches but then drops down to zero again and then eventually will not come on for water until it is topped up. Does anyone have any clues on this one yet ??

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On the pipework near the boiler there should be a silver flexi hose connecting the two copper pipes ...this is called a filling loop there sould be taps on the filling loop turn on by moving the black plastic taps do this slow ..at the same time look at the pressure gauge on a baxi do not go over 1 bar...............

warning ..if the boiler has lost pressure where has it gone..is there any leaks anywhere..if it persist contact a engineer

Posted on Jul 07, 2008

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Heating Is a closed system, so if its loosing water that fast , must be a leak somewhere, look for green scale on pipework joints, or rusty spots around radiator, espescialy around the bleed valves and plugs at the top, also check the red pressure relief is not stuck open, turn it untill it 'clicks' shut to be sure. When filling fill up to about 1.5 bar then run system warm and go round bleed each radiator, highest first, then top up to about 1.5 warm.

Posted on Jan 01, 2013

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Posted on Jan 02, 2017

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