Flow valve assy
The light is on the unit but just a cold flow
That is a bit peculiar because changing that valve shouldn’t involve disconnecting any wires.
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
Answered 9 years ago by Anonymous
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