This question is regarding Redring Thermal Cut-out (TCO) with Tabs - 93597836

redring extra electric shower unit

I think that I may have the same problem as previous people. If I fiddle around with the temperature controls I can get hot water but it isn't constant. When the shower Is turned off the temperature light Is on, stays on all of the time (even when not in use) and it sounds like a kettle is boiling inside shower for approximately 5 seconds after. Any advice is greatly appreciated and instructions to fit as I am a DIY lost cause!!!
Asked 10 years ago by Anonymous

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.


I amoften asked “Is this a DIY job” to be honest I can’t answer that, becausewithout knowing someone, it isn’t possible to assess their skills?

Ishould say that most jobs on showers although relatively easy (from my point ofview) can be fiddly and an extra pair of hands, long thin fingers and thestrength in your hands of an all in wrestler are a help!

The secret is, observing very carefully when things are taken tobits, their order and orientation, taking notes and/or photos as you go can alsobe a help.

Whenyou are working with electricity and water so make sure it is switchedoff and turned off before you start.

If youthink you can do the job but aren’t just that confident, it may help to buy thepart and compare it to the faulty part, you will then be able to see where thescrews, wires, nuts, or washers etc. go, if then you think it is to complicated,at least you will have the part when the plumber or electricianarrives.

We will always be here to offer help and advice if you run into aproblem, however it is not the same as being on site where we canget the overhaul picture, if you are still not sure, now is the time to call ina professional.


Answered 10 years ago by Anonymous

View Product and Order Online:

Do you need any additional help to find the correct spare part?

Please click the following link if you would like to see other answers or ask a question regarding the Redring Thermal Cut-out (TCO) with Tabs - 93597836

If you've landed here and this question is not about your specific product, please take a look at these similar items on our Redring Thermal Cut Outs Spares page. Alternatively, if you're looking for any other brands you should view our full range of Shower Spares.

If you do not want to proceed with a repair or you want to buy this item or similar, please consider one of our Replacement Redring Thermal Cut Outs

For any other support request please get in touch.