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Hot Water Going Cold

  • 03-03-2015 8:58pm
    #1
    FREDNISMO
    Registered Users, Registered Users 2 Posts: 344 ✭✭


    I was wondering has anyone ever had this problem, when the hot tap in the kitchen is turned on it does the usual gradually getting hot and very hot just for a few seconds then the tempreture falls to barely luke warm, I let it run for 5 mins several times to see if it would get hot again but it wont until I run the hot tap in the bathroom then it returns to very hot. The system is fed of solid fuel cooker with a cylinder upstairs.


Comments

  • #2
    dathi
    Registered Users, Registered Users 2 Posts: 1,422 ✭✭✭dathi


    has the plumber fitted a thermostatic mixing valve to the hot water to stop you scalding yourself http://www.rospa.com/HomeSafety/Images/tmv2.jpg


  • #3
    FREDNISMO
    Registered Users, Registered Users 2 Posts: 344 ✭✭FREDNISMO


    dathi wrote: »
    has the plumber fitted a thermostatic mixing valve to the hot water to stop you scalding yourself http://www.rospa.com/HomeSafety/Images/tmv2.jpg

    No its on the kitchen sink no thermostatic valve fitted. The problem seems to have started after I got the cylinder replaced.
    Thanks for the reply.


  • #4
    K.Flyer
    Registered Users, Registered Users 2 Posts: 8,565 ✭✭✭K.Flyer


    FREDNISMO wrote: »
    No its on the kitchen sink no thermostatic valve fitted. The problem seems to have started after I got the cylinder replaced.
    Thanks for the reply.

    Climb up into your attic and check that the expansion pipe is well above the height of the water level in the tank.


  • #5
    Dtp1979
    Registered Users, Registered Users 2 Posts: 12,870 ✭✭✭✭Dtp1979


    K.Flyer wrote: »
    Climb up into your attic and check that the expansion pipe is well above the height of the water level in the tank.

    +1


  • #6
    FREDNISMO
    Registered Users, Registered Users 2 Posts: 344 ✭✭FREDNISMO


    Dtp1979 wrote: »
    +1

    Just did that its a good 6 inches from the water level


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  • #7
    Dtp1979
    Registered Users, Registered Users 2 Posts: 12,870 ✭✭✭✭Dtp1979


    FREDNISMO wrote: »
    Just did that its a good 6 inches from the water level

    Is it a mixer tap?


  • #8
    FREDNISMO
    Registered Users, Registered Users 2 Posts: 344 ✭✭FREDNISMO


    Dtp1979 wrote: »
    Is it a mixer tap?

    Yes it is monobloc type


  • #9
    Dtp1979
    Registered Users, Registered Users 2 Posts: 12,870 ✭✭✭✭Dtp1979


    FREDNISMO wrote: »
    Yes it is monobloc type

    Maybe the cold is passing into the hot somehow
    Turn off the mains water. Then run the hot and see if it happens


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