No water from hot side

Easy one.
Feel the pipes. The pipe on the right should be cold. If the pipes are correct, turn the cartridge 180 degrees.

My first suggestion is to have the installation plumber return to adjust the faucet to function properly

probably have a kink on how water line feeding valve..if possible to cut drywall bhind tub valve and inspect pipe at bottom plate...moen faucets are equipped w/ anti scald device, pressure balanced (newer models) and this could cause cold water to overwhelm hot water...

Remove handle to gain acess to the temperature limit stop. Remove handle and pull out handle adapter kit and next there is a dail that can be adjusted to control the water to balance the temp. It could have been installed wrong, pay attention to where it is now and pull it back to it disengages out of the stem and move it counter clockwise a little and reinstall. Put handle on and test water for correct movement.

Go to link below for a part's diagram if needed.

TO ORDER PARTS CALL: 1-800-465-6130
www.moen.com

It sounds like the seals are going bad. Moen is probably rebuildable. You can go to a Menards and ask if they have the replacement guts for your particular model.

if u still have instructions it will explain how to adjust the water -in the handle are a red and blue plastic tabs that are adjustable pull back and turn to adjust --this is the anti-scold--till u are satisfied

You can try to rotate the first plastic ring to the left of center a few teeth, this will let the handle advance alittle more to the hot side.

moen does not have a ball and washers....sounds like a Delta maybe. Moen uses cartridges. Either way sounds like a balancing spool problem....but you will need to make sure of the right name for the faucet to get the parts.

tun off the water.
unscrew teh allen screw under neath the handle. pull out hteh handle. undo the wall plate and gain access to the cartridge in the handle body. turn the artridge around 180 degree and reisntall all parts.

Wow A Mystery Faucet!!! SOUNDS LIKE THE WATER LINES FEEDING THE FAUCET MAY BE SWITCHED. CHECK TO MAKE SURE THE COLD FEED GOES TO THE COLD SIDE AND THE SAME FOR THE HOT. SOMETIMES MISTAKES ARE MADE WHEN INSTALLING THE FAUCET. MAKE SURE THEY ARE CONNECTED THE SAME AS THE 2 THAT ARE WORKING. IF YOU HAVE THE TIME AND PATIENCE, YOU CAN TAKE A WORKING FAUCET AND INSTALL IT IN PLACE OF THE (mystery faucet) AND SEE IF YOU HAVE THE SAME RESULTS. IF YOU GET HOT WATER IN THE TEMPORARY FAUCET, THEN YOU HAVE A DEFECTIVE FAUCET. THESE ARE A FEW TROUBLE SHOOTING TIPS I HOPE THAT MAY HELP YOU.....JOE