Plumbing Questions? Ask a Plumber and Get Answers ASAP.
Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. First I’ll need some more info so I have a more complete picture of you situation.
Did you remove the head to see if you have water out of the shower arm? If you did and still nothing then I need the model number of the valve
I need the model number of the valve
Ok, give me a few to look up the specs for this model
Looks like this model have integral shut offs. Are they open ?
On the valve right next to where the water lines connect.
There's a hex there or do you have stems with a screwdriver slot?
Hex or slot?
Ok, let's try this. Turn the water off. Then remove the cap on the pressure balance spool port (should be right side with a big screwdriver slot). Once you have it off pull the spool out. The spool is 2 cylinders 1 inside the other. The inside one should move freely. If it does then put it back and next back one of those large hexs off. Take it right out. Is it just a cap or is does it have a check valve behind it. If nothing is there then put it back and next pull the cartridge out of the valve and turn the water back on. This should flush out the valve. The water will go everywhere so have somebody at the shower to keep the water in the tub.
Let me know what happens.
Ok, are the checks (spring & plungers) clean? no debris or sediment? Something just occurred to me, how are you turning on the water at the valve?
So you pulled the cartridge stem out to turn it on? If so then the next step is to pull the cartridge and turn the water back on
You pull out center cartridge by removing the horseshoe retainer clip.
So you got a strong stream of water out of the body of the valve when you pulled the cartridge. If that's the case then you probably have a bad cartridge. The only other possibility is that there's a problem with the piping. I can't think of what that could be since I didn't install the valve. Maybe the valve is upside down (is the pressure balance piston on the right?). If you're confident your piping is OK then I'd call Moen(###) ###-####, tell them what you did and ask how they want to proceed since this would be a warranty issue.
Then I'd call Moen. I can't think of anything you might do that would block the flow via the piping. It's a stretch but it's also possible the valve body is defective.
I'd appreciate favorable rating