Creda 850dl 8.5 electric shower

Hi I have a creda electric shower running not even LUKE warm even on high and when I slow thermostat down ok difference I’m a plumber and gas engineer just checking if you think it could be thermal cut of or solenoid? As you said solenoid is obsolete ?regards
Asked 4 years ago by Derek Cairns, Leicester
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.

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 cost.


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

www.showerdoc.com/creda-850dl-electric-shower-2010-current

Answered 4 years ago by Barrie Seabright

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