no hot water

no hot water coming from shower.



removed cover

live on both sides of the CTO when shower is off

but only on inward side of CTO when I turn on the shower



I this a CTO problem??
Asked 11 years ago by Anonymous

I haven’t heard of this problem before.

Are you sure you are testing the Thermal Switch (TCO)correctly?

 

There is a video clip half way down this page that shows howto check the TCO, have a read at the instructions below and if this doesn’tsolve the problem get back to us.

 

If the shower is absolutely cold then I thinkyou 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 afaulty TCO will have power at only one.

(The function of the TCO is, if the water over heats it cuts thepower off to the elements)

See Video.

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

 

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

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

 

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

 

Apart from helping to fix yourshower, they are really useful for checking you have a power supply toappliances, for checking fuses, letting you know much power you have left inbatteries

(so you know if they are dud ornot)  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

 

 

Answered 11 years ago by The Shower Doctor

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