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Faulty Electric Switch? Or Faulty Storage Heater?

Discussion in 'Electrics UK' started by Hyper88, 5 Dec 2014.

  1. Hyper88

    Hyper88

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    Last winter noticed a fishy smell. Tracked it down to a Electric Switch for Creda Storage Heater (79161C - April 1993). The switch was burned out. The contacts were cleaned out. Replaced with MK Electric 20A Switch.

    Same thing happened again. The switch has burned out again.

    The red cable is stiff for about an inch, burn marks outside, but above that the red cable is soft.

    The Flex cable from storage heater which came into the switch is in good condition. Opened storage heater. Could not see any burns inside. Though did not open up any further. Is there anything I need to check for inside?

    I just don't know if it the Electrics are wrong or a fault in storage heater itself.

    The electric installation is from late 80s in Barratts built property.

    How can I diagnose what is going on?
     
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  3. deadshort

    deadshort

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    Hi, I asssume the heater is 3kw ? The evidence would point to a loose connection on the live feed or, as you have already experienced, a faulty switch. I would also check the connections at the CU are tight. Also check the cabling is adaquate for the connected load.

    Regards,

    DS
     
  4. ban-all-sheds

    ban-all-sheds

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    When you replace the switch you need to cut the cable back to clean bright copper and soft insulation - where it's stiff it's become damaged by overheating, and won't make good contact any more.
     
  5. DIYnot Local

    DIYnot Local

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