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Baxi Combi 80e pressure at 0

Discussion in 'Plumbing and Central Heating' started by afireinside, 23 Sep 2020.

  1. afireinside

    afireinside

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    Hi all,

    First time touching anything boiler related but I’ve been asked by my landlord to increase the boiler pressure after I informed it was at 0 and no hot water, he sent a YouTube link for a completely different boiler so I’m not sure how to apply it to my own, I’m sure it’s this silver braided cable but I’m not sure if I need to turn the right side with a screwdriver, the left black knob or both. Boiler has been turned off at the main first. I’m also not sure how far to raise the pressure.

    Any help appreciated!
     

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  3. CBW

    CBW

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    Try turning this handle towards or away from you slowly, watch the pressure gauge on the front increase, then turn back off.
     

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  4. afireinside

    afireinside

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    Hi Chris, thanks for confirming, that’s worked a treat, do you know what number I should raise the pressure to with the boiler off?
     
  5. oldbuffer

    oldbuffer

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    1. About 1.3 bar cold.
    2. Once you have done this, keep checking the pressure when cold (daily?), watching for any increase.
    3. The valve with the round red handle is a gate valve. Its not really suitable for a filling loop as they tend not to shut off completely. This can lead to water passing the valve and increasing the pressure in your system.
     
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  7. Mottie

    Mottie

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  8. CBW

    CBW

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    As per old buffer usually between 1-1.5 bar.
     
  9. terryplumb

    terryplumb

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    That gate valve is on the by pass and there purely to restrict . Do Not touch it .
     
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  10. oldbuffer

    oldbuffer

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    Terryplum's got better eyesight than me! He's quite right. The valve you need to open is the black handled arrowed in blue.
     
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  11. DIYnot Local

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