This question is regarding Creda 950DL - Shower Spares

No hot water

my shower stopped working suddenly with no hot water just cold, we replace the thermostat on top of the unit and it worked once then stopped again. Any ideas please
Asked 9 years ago by Anonymous



Afaulty TCO will have no continuity across the two terminals (Theblack thing on top of the heating tank)

Thereforea good TCO will have power at both connections and a faulty TCO willhave power at only one.

(Thefunction of the TCO is, if the water over heats it cuts the power offto the elements until the water cools, this can take up to 15mins)

SeeVideo:

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

Afterfitting a new TCO

Whenfitting a new TCO listen to the shower, after it has completed itsfirst on/off cycle, if when it is switched off you hear it continuingto heat (Noise like a kettle starting to boil) this will mean thatthere is a switch or a relay that is stuck in the on position, thisis keeping an element energised and this is probably what caused theoriginal TCO to fail.

Ifthis is the case replace the faulty switch or relay and make surethat you switch the shower off at the isolating switch when theshower is not in use because this may cause the new TCO to fail.

Answered 9 years ago by Anonymous

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