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Discuss COMBIMATE Dripping any advice in the Plumbing Forum area at

  1. J murton

    J murton Member


    Can anyone advise me on the combimate I have fitted. It has the Mains water into the inlet and then outlet straight to boiler. It’s leaking underneath. Does the housing come off ? Will it be easier to just replace it ? Do I even need it ? :confused:


  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    They do a service kit with new seals and balls

    Few vids on u tube shows you how
    • Agree Agree x 1
    • Informative Informative x 1
  3. Rob Foster

    Rob Foster Top Contributor!!

    I thought Combi Mate is no longer manufactured. AND as its a 'mate' its not mine just in case anybody wants to know.
    Top Up Mate, CondenserMate, and Flood Check Mate are part
    of my generic portfolio We have Fence Mate as well.
    Rob Foster aka centralheatking
  4. chris watkins

    chris watkins Plumber

    And there was me thinking you had no Mates Rob. :)
    • Like Like x 1
    • Funny Funny x 1
  5. Tea-Break

    Tea-Break Member

    It’s most likely the main O ring, leaking.
    Order a replacement set of genuine balls and included will be a new O ring.
    Press both red buttons simultaneously and the cover pulls off (automatically isolating the supply) unscrew red filler plug on top. Then unscrew large retaining ring, empty contents, replace O ring and tighten up retaining ring. Finally add new balls via filler plug hole. Replace plug and cover:)
    • Informative Informative x 2
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