New thermostatic shower not getting hot

[Flipjango]

As i stated in another post, we've just had a new bathroom in the loft installed. We've got plenty of hot water to the sink, and there seems to be enough pressure as the shower is running nicely, but the thermostatic shower will only get tepid even at the fullest setting. I'm guessing this means its been incorrectly installed but not knowing much about plumbing I just wanted to check before I go mad with the plumber and insist he comes back. Can anyone shed some light please?

I should add that we have a practically new Worcester Bosch combi boiler, and the thermostatic shower on the floor below works perfectly. The new install is on the 2nd floor. Our mains pressure is relatively low as 10 l/s.

 

[3DGuy]

Have you tried adjusting the Thermostatic Cartridge? They have a pre-set Max temp usually to 38C. But you may find that this was incorrectly set which means even on the dial for the max "Hot" setting it will not allow it to get warm enough.

If you check the manual, or look online for your make/model you can find how to adjust it. Ours you take the cap off at the front then use an Allen key to adjust the Max Temp setting.

Hope this helps,
Chris

 

[Flipjango]

View media item 73995 image of the cystern.

 

[WabbitPoo]

Very nice. Why did you post this image?

 

[Flipjango]

Oops, attached to wrong thread!

 

[Charnwood]

Is the float catching on the overflow pipe?

 

[Flipjango]

I don't think so, I think it's just the angle of the photo, but will check.

 

[planenut]

Very nice. Why did you post this image?

he's had a quick flush.

 

[Charnwood]

If it's just been fitted (the shower, not the loo) get the plumber back. He should have left in proper working order.

The shower should have been commissioned as per the instructions, which can involve - as previously said - fiddling with the cartridge. These things are not just fit-and-forget.

BTW; 10 l/s is the flow rate, not the pressure.

 

[longdogs]

If it's just been fitted (the shower, not the loo) get the plumber back. He should have left in proper working order.

The shower should have been commissioned as per the instructions, which can involve - as previously said - fiddling with the cartridge. These things are not just fit-and-forget.

BTW; 10 l/s is the flow rate, not the pressure.

Always amazes me that someone would fit a new item and not test it.

 

[TCCHeating]

BTW; 10 l/s is the flow rate, not the pressure.

Also im hoping you mean l/m not l/s flijango that would be more a waterfall than a shower