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Rick
Rick, Construction Supervisor
Category: Plumbing
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Experience:  Licensed Master plumber with 40+ yrs. experience.
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I have a single handle Gerber shower valve that is leaking

Resolved Question:

I have a single handle Gerber shower valve that is leaking and I need to replace the cartridge. The valve allows you to change the water temp by rotating; and the pressure by pulling out on the handle. I tried to remove the handle to get at the cartridge but even though the single phillips head screw is out as far as it will go, the hanlde will not come off...easily anyway... I don't want to force it....please advise on this procedure plus getting cartridge out easily..thank you
Submitted: 1 year ago.
Category: Plumbing
Expert:  Rick replied 1 year ago.
Welcome, my name is XXXXX XXXXX I will do my best to help with your issue

Ok, it sounds like you have a Moen not a Gerber valve. Moen is the only valve I know of that has the valve action you describe. If you can't get the handle off you need a handle puller
graphic

Here are step by step instruction from Moen to change the cartridge. These instructions are for every variation so you'll need to use the one that applies to your valve, but they're all basically the same

http://www.moen.com/consumer-support/installation-help/tutorial?id=moen0133
Customer: replied 1 year ago.

The face plate onto which the handle is attached says Gerber....the designs of the handle and face plate are the same. I ordered the unit about 8-9 years ago from a plumbing supply house and it has never been touched. Do you still think that they put in a Moen cartridge?

Expert:  Rick replied 1 year ago.
The action you describe is unique to Moen. It's possible that Moen might have made this valve for Gerber. I just checked all the available Gerber shower valve repair parts and none of the single handle cartridges would have this valve action. Once you remove the handle it will be easier to determine if this is indeed a relabeled Moen product. get back to me when you get the handle off and we can proceed from there
Rick, Construction Supervisor
Category: Plumbing
Satisfied Customers: 13951
Experience: Licensed Master plumber with 40+ yrs. experience.
Rick and other Plumbing Specialists are ready to help you
Customer: replied 1 year ago.

I was able to get the handle off....I attach a picture of the cartridge which rotates up and down to vary pressure....I have not been able to locate anything on the web that indicates how I should go about this.

Expert:  Rick replied 1 year ago.
You remove this cartridge by grabbing the stem with a pair of channel lock pliers and pull it straight out. To install the new one you just push it straight in until the ears on the retention ring engage/grab the valve body. This is a Gerber valve. Your original description sounded like you were describing a Moen valve.
Expert:  Rick replied 1 year ago.

Of course you would turn the water off first. Don't attempt this until you have a replacement. Go to a plumbing supply house that sells Gerber for parts they can confirm my recollection that there is just one style Gerber cartridge of this vintage

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