I've a Hansgrohe Ecostat thermostatic shower valve in my bathroom, horizontal style like in the picture here:
- posted
17 years ago
I've a Hansgrohe Ecostat thermostatic shower valve in my bathroom, horizontal style like in the picture here:
If the shower valve is "constantly warm" then surely it is being subjected to a constant flow of warm water. Therefore it follows there must be a leak.
How are the pipes connected at the back of the unit? Is it in a solid wall or stud partition? Most likely source of a leak is where the feed pipes adjoin the unit, and there will be a *very* small leak hidden away in the wall cavity. Plenty to keep the unit warm, but maybe not noticeable until the ceiling falls down downstairs(!)
Easiest way to check is to turn off the hot feed from the pipe and see if the problem disappears.
This can be caused by a slight difference in supply pressures, there are usually non-return valves fitted in the mixer to stop this effect.
You may have to add some to the supply pipes to fix the problem.
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