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Biasi Garda pressure gauge fluctuation

Discussion in 'Plumbing and Central Heating' started by Dave N, 8 May 2019.

  1. Dave N

    Dave N

    6 May 2019
    Thanks Received:
    United Kingdom
    My M90F 28S Central Heating runs at 1.2 bar pressure, the boiler is cutting in at 30 degrees and completes its cycle at 60 degrees. When the boiler is building up heat from 30 the pressure gauge fluctuates from 1.2 bar to 1.8 bar then stabilizes??

    Anyideas would be appreciated.
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    DIYnot Local

    3 Sep 2019
    United Kingdom

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