Morris
New Member
I have Grohe rough-in 34 397 installed and I'm having trouble with the temperature calibration. The service stops are horizontal (open) and the hot water tank is producing plenty of hot water (as checked in the sink), but I can't get the water temperature in the tub above 75 degrees even with the adaptor turned all the way to the left. I closed and opened both service stops to insure that hot and cold are both flowing, but hot is just luke warm. Any suggestions?
As a side note of information, I'm extremely frustrated with Grohe's instructions right now - when purchasing trim 19615, I was told to use Rough-in 34397, but the instructions packaged with the trim are for 2 completely different rough-ins. I couldn't make sense of why I was missing parts until I realized it was a different rough-in. The trim instructions from their website, however, are for my rough-in and those are the instructions I'm now following. Very aggravating.
As a side note of information, I'm extremely frustrated with Grohe's instructions right now - when purchasing trim 19615, I was told to use Rough-in 34397, but the instructions packaged with the trim are for 2 completely different rough-ins. I couldn't make sense of why I was missing parts until I realized it was a different rough-in. The trim instructions from their website, however, are for my rough-in and those are the instructions I'm now following. Very aggravating.