Tighten a Grohe shower handle - Grohe Home

SOURCE: grohe trim pressure balance valve

i looked at it and there might be a press in cap with a screw underneath where the grohe label is. there also may be a set screw around the shoulder of the handle where an allen hex wrench fits to losen its clamp on the stem. also.......some handles just snap on and just pull off with some tugging and wiggling them just right.

SOURCE: Grohe Rainshower head arm

yes you can unscrew it counter clcok wise, be sure to put a rag on the output tube so you don't scratch it.

SOURCE: I am installing a Grohe 35015 shower valve. I

Be concerned and follow manufactures recommendations. Often you make sure any plastic seats are not closed if soldering the valves.

The only connection for copper pipe I know of that aren't soldered are either the flared fittings OR the compression ones using the littl "ball" type collars.

SOURCE: leak where Grohe shower head attached to the threaded pipe

using a pair of vice grips wrapped in a soft towel( to prevent scractching) turn the shower head in a counter clockwise direction to remove it then apply liquid teflon (real-tuf) to the threads on the shower arm and tighten the shower head but dont over tighten it liquid teflon is more effective at sealing leaks than teflon tape and it can be wiped clean

SOURCE: Install trim and adjust the thermostat on a Grohe shower faucet

Before you install the temperature control knob, adjust the valve body (47111) with a wrench to set the temperature to "100 degree or close to it". Now, place the limit ring to tdc (top dead center) and control knob with the red 100-degree align to it. Your problem may have been the valve's temperature setting is out range when you installing the temperature control knob.