Creda Expression 500s overheat light on constantly

I have a Creda Expression 500s and the overheat light is on constantly and not heating the water, is this the TCO valve?

Many thanks
Asked 9 years ago by Anonymous

Yes Ithink you may have a faulty Thermal Cut Out

Afaulty TCO will have no continuity across the two terminals (Theblack thing on top of the heating tank)

Thereforea good TCO will have power at both connections and a faulty TCO willhave power at only one.

(Thefunction of the TCO is, if the water over heats it cuts the power offto the elements)

SeeVideo.

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

 

Answered 9 years ago by Anonymous

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