The Moen faucet in my shower comes away from the wall when the shower is turned to hot and water is diverted through the shower head. How do I fix this problem?

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Originally Posted by Erica76

The Moen faucet in my shower comes away from the wall when the shower is turned to hot and water is diverted through the shower head. How do I fix this problem?

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Hi Erica,
Are you saying the entire valve, including the cover plate, is floating? That when you pull the knob to turn it on it then pulls away from the wall?
Did this just happen or has it been a ongoing problem? Either the valve wasn't backed and strapped or it pulled loose. If you want to try this yourself you must remove the knob and the chrome cover plate. You will need (2) 1/2" copper pipe straps and (4)wood screws. If there's backing and the valve simply pulled away from the straps it may be as simple as screwing the straps back in thus securing the valve. If no backing you may have to open up the wall and install 2 X 4 backing to strap the valve to.
Good luck Tom

No, it is the lower portion that is coming away from the wall (i.e. the portion that water comes out of when you are filling the tub) . The control is a bar control and pressure increases as you turn the lever to the left to hot water. When you do this and then lift the device to divert the water to the shower head, the whole device pulls away from the wall (presumably from water pressure when diverting the water through to the shower head). Can run water into the tub without it happening, it is just when you try to turn on the shower head that it happens. Worked properly until this weekend.

Quote:

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Originally Posted by Erica76

No, it is the lower portion that is coming away from the wall (i.e. the portion that water comes out of when you are filling the tub) . The control is a bar control and pressure increases as you turn the lever to the left to hot water. When you do this and then lift the device to divert the water to the shower head, the whole device pulls away from the wall (presumably from water pressure when diverting the water through to the shower head). Can run water into the tub without it happening, it is just when you try to turn on the shower head that it happens. Worked properly until this weekend.

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Hi Erica,
Ahh! You have a tub, not a shower. There are several ways you can address this. Look directly behind the tub in the next room. There should be a tub access hole in the wall. The drop pipe to the spout came loose from its strap on the backing that holds the spout back. If you can't get at it to restrap it perhaps you could wire it to the backing. Another way would be to to remove the spout, ( if it's attached to the pipe by a Allen head set screw located on the under side next to the wall line) and have someone push the 1/2" elbo as far forward as it will go while you reinstall the spout next to the wall. The tension will hold the spout tight while you divert water to the shower head.
Good luck, Tom