still no hot water

we have changed the thermal cut out on the MX Inspiration Lxi - briefly had hot water ( 20 seconds) switched off but it went back to reset, sounds as though boiling & won't produce any more hot water. We turned it off & haven't tried again. Any thoughts? Have just moved house & inherited this.
Asked 11 years ago by Anonymous



A faulty TCO will have nocontinuity across the two terminals (The black thing on top of the heating tank)

Therefore a good TCO will have power at bothconnections and a faulty TCO will have power at only one.

(Thefunction of the TCO is, if the water over heats it cuts the power off to theelements until the water cools, this can take up to15mins)

SeeVideo:

http://www.youtube.com/user/showerdoc#p/u/2/_zi8JbEMYMs

After fitting a new TCO

Whenfitting a new TCO listen to the shower, after it has completed its first on/offcycle, if when it is switched off you hear it continuing to heat (Noise like akettle starting to boil) this will mean that there is a switch or a relay thatis stuck in the on position, this is keeping an element energised and this isprobably what caused the original TCO to fail.

If thisis the case replace the faulty switch or relay and make sure that you switch theshower off at the isolating switch when the shower is not in use because thismay cause the new TCO to fail.

Answered 11 years ago by Anonymous

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