T70si Temp problems

Will only run cold unless bottom temperature dial is turned almost fully to hot. Then there is an audible "Click" and the shower then runs unbearably hot. Turning back down to cold has no effect untill there is another "click" then it runs stone cold again?
Asked 11 years ago by Anonymous

The things to check first are.

1 That the main valve coming into your house is fully open.

2 Then check that the valve on the line to the shower is fully open.

If these valves are not fully open then there may not be enough water
getting to your shower to cool it properly the overheat safety devicewill turn
the power off until it cools Then it all starts again

Make sure that the shower headis clean and clear, that the hose isn’t kinked (this can happen just behind thehand set where it is difficult to see) also check the inside of the hosealthough it can look OK on the outside it could have collapsed internally

The other possibility is a faulty flow/stabilizer valve not allowingthe correct amount of water into the shower.

A ruff check is to remove the shower head turn temperature control tofully hot the water coming out of the hose should be a bit more than a dribblethen turn to fully cold and it should be coming out at full flow.

If there is not much difference between the two then you could have afaulty flow valve.

Carry out this check after you check the inlet valves.


 

Answered 11 years ago by The Shower Doctor

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