Mira Sport Max

I have a MIRA Sport Max 10.8KW. the overheat light came on about a week ago and the water was extremely hot. A week later the overheat light is still on and the water is cold on all programmes.



I have good flow and can select all programmes. I have removed the thermal switch from the heater tanks and the conection plate is badly corroded.



Does the thermal switch have any link to the overheat switch and does the bad corrosion have any effect on its operation.



Could you make any suggestions for fixing please?
Asked 12 years ago by Anonymous

Sorry for the delay in replying

I suspect that 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 until the water cools, this can take up to 15mins)

See Video.

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

 

 

 

Answered 12 years ago by The Shower Doctor

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