The select button on our raindance select model A112 shower head no longer works to get the different spray options. Pressing on the select button doesn't make any change to the spray type.

REmove old showerhead using two wrenches, one to hold the stem from the wall steady, then twist the head counterclockwise. Use the same wrenches to install the new one, twisting the head clockwise to tighten. But before you put it on, clean the threads on the stem with a rag and wrap teflon plumber's tape around the threads clockwise 4-5 turns. That keeps it from leaking and makes it easy to remove in the future.

sounds like the link between the selector lever and the internal control surface is broken or stripped. if the unit can be disassembled without damaging any parts, then looking in side will likely allow identification of the problem.

The most common issue with this type of head is water deposits building up in the spray face. This will cause the unit to express water from the venturi in the center of the spray face as well as other places. If this is the case the best solution is to remove the unit and soak it in CLR for about ten minutes. Then rinse it well and reconnect to the water source. Run water throught the shower head and while running rub the rubber water channels to further break up and clear out the deposits. Then repeat the process at least two more times or until the deposits are cleared out. If you need further help feel free to contact Hansgrohe Technical at 1-800-334-0455.

First thing to check is the filter screen at the hose connection on the hand shower. If this screen is clean and there is no debris in the flow restriction device inside the handle end you will most likely need to clean the hand shower spray face. You can remove the unit from the hose and soak the spray face in CLR. Follow the instructions on the container for use and dilution. Soak for no more than 10 minutes at a time. After soaking, rinse the unit well and reconnect to the water source. Run water through it and while running rub the rubber spray channels to further clear up any deposits. Repeat the soaking and cleaning process at least two more times to clear out all deposits that may be limiting your performance. If you need more help feel free to contact me at Hansgrohe. 1-800-334-0455. Press 2 for tech and ask for David Scarborough. I'd be happy to help.

valve is bleeding by remove and check the condition of cartrige look for wear or dirt

If the water is coming up through the pipe then the head is gunked up. Try putting the head in a bucket with a mixture of 25% vinegar in warm water see if that clears it.
Hard water leaves a deposit or scale which blocks up the nozzles. Vinegar will help to dissolve this

should have a nut holding it at bottom of sprayer where hose ends needs washer at that point

Try exchanging the Delta head with one of the other shower heads you are happy with if you haven't already done so. No change in the flow means it's not in the head, and change means it is.

If it is in the head, since you are on a well and not a municiple water supply, you might consider removing the factory install flow controll device located just below the threaded area that mounts to the shower arm. These inserts can be a real bugger on some heads and each one is a little different than the last. The trusty nail often works well.

Your body sprays, I believe, are factory fixed at something like 2.2 gpm and non adjustable.

Also consider for a moment a garden hose with trigger spray head on it. When you squeeze the trigger the water will shoot out a certain maximum distance. If you were to take an ice pick and poke a hole in the hose, that maximum distance will be slightly reduced. The more holes in the hose the less the maximim distance. Correspondingly, the more holes you poke the less distance each hole will squirt because you have the same pressure and volume of water but more exit points.

A monitor has a flow rate of about 6 gpm at 85 psi which is pretty average for shower valves. If your other showers have only one exit point(i.e. one head) and the R1824 has 3 with the same pressure and volume, the garden hose illustration can also explain the volume change as well.

I have exactly the same problem, has anyone any ideas?