I installed a Moen L2353E tub/shower faucet and water won't come out of shower head

check or change diverter

There is a restriction in the tube spout or the valve is in up-side-down

To talk about your problem forces me to assume a few things.....If you allow the water to flow without cartridges and handles, the water must be flowing straight through the cartridge channels and out into the tub. It is not flowing through your tub spout or shower head when you test the water this way. If I'm correct, then the problem is isolated to the water mix operation. That means coming out of your spout or shower head. So now I have to ask a question. When you operate as normal (cartridges and handles installed) does your problem show up only on your shower head or does it also show up when operating out of the tub spout? If the problem is isolated to the shower head, try a head replacement. It may be partially plugged. If it's head or spout there may be something in the mixing pipe that only shifts around as pressure increases. I hope that is not your problem. It would require pulling those pipes out for inspection and most likely replacement. Nimsgame

sound.s like repipeing

Our Moen always dribbled a little since the diverter is metal-to-metal and doesn't really have any seal. The loss shouldn't be a stream though.

its because that model usually when u pull for the shower is not properly connected. You will have to remove handle and coverplate, then shine flashlight down to see what is happening when pulling rod on tub spout for shower. Usually its broken or bent and just needs new one installed. It cost me 2 buck for new shower rod. Directions u can get free from Moen with free lifetime parts.

Call Moen directly. They will ship what you need to your door, for free.

The faucet was installed upside down.
The shower riser pipe in the wall is to short( the distance between the faucet and shower head).
One of the biggest problems is if your shower faucet was installed with Pex pipe to the tub spout. Pex pipe will restrict the flow and force the water back up and out of the shower head.
The tub spout must be piped with at least 1/2 brass pipe nipples and fittings, or 5/8 OD. copper pipe and fittings.
Hope this helps, if you further questions please let us know.

Look at link below to get the measurements you need.

http://www.moen.com/shared/pdf/instruction_sheets/ins2437b.pdf


Good Luck and please rate 4 thumbs for the free answer

The faucet may be installed upside-down.