artisan shower running cool

Shower running cool, other taps on same circuit also run cool, even when shower is off. Other hot taps on same circuit as shower only run hot when the shower temp. control tap is turned fully to cold. It seems that cold water runs through the shower body into the hot pipe even when the shower is off and the temp. control is ever so slightly up from fully cold.
Asked 13 years ago by Anonymous

Carry out this check first

 

Regarding the temperature fluctuation it could be a faulty cartridge however to check this, see if you can get hold of the hot supply pipe before it enters the shower or perhaps as it leaves the boiler.

 

If when holding this pipe the temperature fluctuates then the problem is not with the shower but more likely with the boiler as the shower can only deliver what the boiler sends to it.   

 

If the supply to the shower is OK then have a look at the check valves in the inlets to the shoawe valve and make sure that they are not sticking

 

Answered 13 years ago by The Shower Doctor

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