This question is regarding Redring Expressions 500s 8.5kw - (53673001) - Shower Spares

Overheat light comes on, shower stops, water bubbles, water starts

When I turn the shower on at the chord the overheat light comes on right away, then when I turn the shower on at the button there is a few seconds of cold water and then the water stops, you can then hear water boiling in it like a kettle would and then the water comes out again. Shower won't turn off at the button, but if you hold the button in the water will continue to come and will eventually reach a stable luke warm heat. I recently changed the TCO which made no difference and the solenoid which fixed it for about 10-14 days.
Asked 4 years ago by Brian Lammey, Carrickfergus
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.
See Video:

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

There seems to be an issue with the parts you have fitted. As the other fault points to the solenoid.
Check the wiring and connections.

Answered 4 years ago by Barrie Seabright

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