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salamander CT70 pump keeps cutting out

Discussion in 'Plumbing and Central Heating' started by snowy21, 17 May 2014.

  1. snowy21

    snowy21

    Joined:
    17 May 2014
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    Location:
    Hampshire
    Country:
    United Kingdom
    My Salamander CT70 pump keeps cutting out. When bath/shower mixer tap is on fully cold it runs fine, when fully hot is runs fine, when in the middle (a good temp for having a shower!!) it runs for around 5 secs then cuts out, shower diverter falls and water comes out of the taps then the pump kicks in again.

    The pump has been fitted for 4 months, and worked correctly for this time, the fault has only just started.

    I have removed my wall mounted taps and run the water with pump switched off, flow rate is within limits of the pump operation. Also run the pump in this configuration and both hot and cold appear to be being pumped at the same rate.

    I then bought new mixer tap and got exatly the same problem. All inlet outlet filters on the pumps are clear.

    I've even removed the supply to the pump and all the flow rates are within the limits.

    I've read a few posts on here for similar problems but no difinitive answer.

    I've spoken to salamander and they don't think it's the pump, but in my opinion; 4 months ago the system worked, now I've got the fault, new taps fitted fault still there, what else can it be?

    One other thing to mention, when the taps are running to fill the bath everythin seems fine until you change the temp of the water, any minor change to the temp side of the taps causes a juddering/banging noise and the pump seems to stall for a moment before re-starting.

    Many thanks.
     
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