The Moen 1222 cartridge is a component used in Moen One-Handle Posi-Temp tub and shower faucets. This article details the process of removing and installing this cartridge, based on available documentation. The cartridge is constructed from brass and plastic and is designed for relatively infrequent replacement, with typical functionality lasting 30-40 years. Proper installation requires specific tools and lubrication to ensure optimal performance.
Preparation and Safety
Prior to commencing any work on the faucet, it is essential to turn off the main water supply. Following this, the faucet handle should be opened to relieve any residual water pressure within the lines. Gathering the necessary tools is also a preparatory step. Recommended tools include a Moen Cartridge Removal Tool, a Phillips screwdriver, a hex wrench, adjustable pliers, and needle-nose pliers. Safety glasses are recommended, though not explicitly required, during the process.
Removing the Existing Moen 1222 Cartridge
The removal process begins with detaching the faucet handle. This is achieved by unthreading the set screw that secures the handle. Subsequently, the handle adapter screw should be loosened, allowing for the removal of the adapter itself. Following the removal of the adapter, the Key Stop and Adjustable Temperature Limit Stop are removed. The Stop Tube is then slid off.
To access the cartridge retaining clip, needle-nose pliers are used to pull it out. It is important to ensure the cartridge is in the ON position, with the notch in the stem facing upwards, before attempting to remove the clip. Once the retaining clip is removed, the Moen cartridge can be removed from the valve. The Moen Cartridge Removal Tool can also be utilized to facilitate cartridge removal.
Installing the New Moen 1222 Cartridge
The installation process begins with applying DANCO Waterproof Silicone Faucet Grease to the oval shape on both sides of the new 1222 cartridge. This lubrication is crucial for smooth operation. The cartridge should be inserted into the valve with the HC symbol and the notch in the Cartridge Stem facing upwards.
After insertion, the Retaining Clip is reinserted to secure the cartridge in place. The cartridge is then turned to the OFF position, ensuring the notch in the stem faces downwards. Finally, the Stop Tube, Adjustable Temperature Limit Stop, and Key Stop are slid onto the cartridge stem. The Handle Adapter and Handle are then reinstalled, completing the installation process.
Cartridge Compatibility and Lifespan
The Moen 1222 cartridge is specifically designed for use with Moen’s One-Handle PosiTemp tub and shower faucets. It is important to note that Moen has utilized various cartridges over time. If there is uncertainty regarding the specific faucet model, users are directed to utilize the “Identify My Product” feature available through Moen’s resources. The expected lifespan of a Moen cartridge is substantial, often functioning effectively for 30 to 40 years before requiring replacement.
Lubrication Considerations
Proper lubrication is a key aspect of maintaining the functionality of the Moen 1222 cartridge. Silicone-based grease, such as DANCO Waterproof Silicone Faucet Grease, should be applied to both the interior and exterior of the cartridge during installation. It is specifically advised not to use plumber’s grade faucet grease, silicon sprays, or lubricants containing petroleum, as these may be incompatible with the cartridge materials.
Troubleshooting: Insufficient Hot Water
If, after installation, the faucet does not provide sufficient hot water, the issue may be related to the cartridge installation or a separate problem within the plumbing system. The provided documentation does not offer specific troubleshooting steps beyond ensuring correct installation.
Identifying Product Warranty Status
Information regarding product warranties can be found by referring to the article “How to Identify if My Product is Warrantied,” as referenced in Moen’s documentation. This resource can help determine if the installed cartridge is covered under warranty.
Cautionary Notes
The installation instructions include a caution to always turn off the water supply before removing the existing faucet or disassembling the valve. This is a critical safety precaution to prevent water damage and potential injury.
Conclusion
The Moen 1222 cartridge replacement process, while requiring several steps, is manageable for individuals with basic plumbing skills and the appropriate tools. Proper preparation, careful removal of the old cartridge, correct installation of the new cartridge with appropriate lubrication, and adherence to safety precautions are essential for a successful outcome. The longevity of the cartridge—typically 30-40 years—means replacement is not a frequent task, but maintaining awareness of the process ensures continued functionality of Moen Posi-Temp faucets.