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Grundfos STN-1.5 B (Issue)

  • 20-06-2023 06:32PM
    #1
    friedcircuits
    Registered Users, Registered Users 2 Posts: 197 ✭✭


    Hi all,

    My shower had being giving trouble for abit - too hot and would not cool down by moving valve. When it was turned down to low temps it surged out, then dribbled and surged out boiling again. I guessed the thermo valve was faulty so replaced shower and that worked - however now my shower pump (Grundfos STN-1.5 B) is giving grief.

    Sometimes it doesn't stop running after the taps etc are off, the shower trickles or just stops etc. The shower was ran tonight for 15-20 mins and the pump has stopped tonight - I had it powered down for two days because it kept going.

    So long question short - has anyone any idea about the pump i.e. does it need cleaning/servicing or (hopefully not) replacing?

    Thanks.



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