Aquatronic 1 plus turning on and off

This morning my Aquatronic 1+ shower started turning off for a few seconds and starting again while I was in the shower. Does anybody know how to fix this..?
Asked 11 years ago by Anonymous
Check the electrical connections first to see if there is a loose wire in the shower or the ceiling/ wall switch. Then, check the Thermal Cut Out (TCO).


A faulty TCO will have no continuity across the two terminals (The black thing on top of the heating tank)

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

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

See Video:

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

After fitting a new TCO

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

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

Answered 11 years ago by Anonymous

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