Under floor heating fault costs

Discussion in 'Electricians' Talk' started by sparky64, Jun 3, 2021.

  1. sparky64

    sparky64 Member

    Daughter has under floor heating that wasn't working, she lives 120 miles from me, and during lockdown it wasn't easy for me to get up there for me too look at as i'm a sparky by trade.

    she got a quote from a local UFH "specialist" for £360, he didn't even come out to look at it, just said it was £360 to diagnose and repair 1 fault on 1 element, and would be a further £240 for any other faults.

    I eventually managed to get up there and found that due to the wattage of the element, a contactor had been fitted in the CU, switched by the temp controller. The contactor wasn't pulling in so i replaced it for £8.99, and all is good.

    She is happy i'm a sparky :)
  2. MGW

    MGW Screwfix Select

    I was very disappointed with UFH. My sister insisted it was fitted to dry the floor in the new wet room. The maximum temperature permitted for the floor, means it takes an age to heat room, in fact does not heat room if extractor fan is on. Lucky also a towel rail.
  3. chillimonster

    chillimonster Screwfix Select

    gotta say wet ufh is good.
    BillyBobToo likes this.
  4. Teki

    Teki Screwfix Select

    Depending on how the fault was described to the UFH specialist, it seems they quoted to pinpoint a faulty element.

    Did you use a contactor of the same brand and compatible with the CU?
  5. sparky64

    sparky64 Member

    Hi Teki

    Yes,the quote was to pinpoint a fault on an element.

    I don't think the replacement contactor was the same brand, but DIN rail mounted, 20amp, DP from screwfix as it happens, got a contactor from local branch, fit and commission all in 40 mins....https://www.screwfix.com/p/british-general-fortress-20a-dp-contactor-no/6654p
  6. jimbobby

    jimbobby Member

    Never understood UFH...too slow, not accessible.
    Totally wrong for a country where you can have snow one day and 23 degs the next.
    Maybe if installed in new builds where there is 6 months of snow ?
  7. Teki

    Teki Screwfix Select

    The problem with using parts from other brands is that they are not approved by the manufacturer of the CU and can cause the DIN rail to bend. Some don't fit the bus bar properly either and can lead to loose connections. So always check with the manufacturer of the CU for the recommended type of breaker/contactor etc.

    If in doubt, fit a separate enclosure for the other DIN rail parts.

Share This Page