Triton Shower staying hot

[funkyskunky]

hello all,

I have a triton opal 3 running hot all the time with the double red light on hot. When I switch to cold it is fine.

I have ran through cold for ten minutes and loads of scale came out the what unit; also descaled the pipe and head. Still to no avail.

Any other ideas ?

 

[seco services]

Have you cleaned the filter, located below the inlet pipe.