Mira sport not heating up

Hi I have a Mira sport that is about 3 years old. I turned it on yesterday and the water was coming out cold. Power light is on and I have tried it on different settings. Other than the temperature, it has a normal appearance with lights, flow, etc.

Can you help?
Asked 12 years ago by Anonymous

If the shower is absolutely cold then I think you may have a faulty Thermal Cut Out

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)

See Video.

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

 

If there is some heat it may be a faulty element in the heating tank (there are two, three in most 10kw showers) you can check them with a multi meter you should have a reading of around 12>18 ohms.

If you have power to the elements and no heat it's probably the elements, no power to the elements then it's probably a micro switch.

 

If you don’t have a multimeter  we sell them at £10 each with a guide on how to use them for checking and testing the various parts of your shower.

 

Apart from helping to fix your shower, they are really useful for checking you have a power supply to appliances, for checking fuses, letting you know much power you have left in batteries

(so you know if they are dud or not)  and lots of other jobs, in short they are well  worth the £10.

 

http://www.showerdoc.com/installation/electrical-products/SKYTRO-600-005-Digital-Multi-Tester

If both the TCO and elements are OK then you probably need a new relay board.

Answered 12 years ago by The Shower Doctor

View Spares and Order Parts:

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 Mira Sport Max - Shower Spares

If you've landed here and this question is not about your specific product, please take a look at these similar items on our Mira Electric Showers 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 Mira Electric Showers

For any other support request please get in touch.