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  1. G

    Grants central heating and water gradually becomes cooler

    Boilerman 2 your advice worked, I renewed the photocell today and all's well. Thanks a lot :D
  2. G

    Grants central heating and water gradually becomes cooler

    Thanks for your advice Boilerman 2, will do that.
  3. G

    Grants central heating and water gradually becomes cooler

    I live in a rural area and have had 3 ch engineers trying to fix my Grants combi 90 mk II problems with no success so tried myself with advice. I renewed the expansion vessel (fixed pressure loss). Advised to and renewed the control box as ch/water came on intermittently but when heating...
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