1. Introduction
The Moen 104439 Commercial Solenoid Housing is a critical component designed for use with specific Moen commercial faucet models. This manual provides essential information for understanding, installing, maintaining, and troubleshooting this solenoid housing to ensure optimal performance and longevity in commercial and institutional settings.
2. Product Overview
The 104439 is a replacement solenoid housing engineered for durability and reliability in demanding commercial environments. It is specifically designed to be compatible with the following Moen commercial faucet models:
- Moen Model 8301
- Moen Model 8302
- Moen Model 8303
- Moen Model 8304
This component plays a vital role in the automated operation of these faucets by controlling water flow.

Figure 1: Front view of the Moen 104439 Commercial Solenoid Housing, showing its compact design and connection points.

Figure 2: Detailed view of the Moen 104439 Solenoid Housing, highlighting its construction and components.

Figure 3: An example of a commercial environment where Moen products, including solenoid housings, are typically installed, showcasing the application context.
3. Specifications
| Feature | Detail |
|---|---|
| Manufacturer | Moen |
| Part Number | 104439 |
| Item Model Number | 104439 |
| Product Dimensions | 15.24 x 7.29 x 5.38 cm |
| Item Weight | 404 g |
| Colour | Chrome |
| Finish | Chrome |
| Item Package Quantity | 1 |
| Included Components | Solenoid Housing For 8301, 8302, 8303, 8304 |
| Batteries Included? | No |
| Batteries Required? | No |
| Country of Origin | USA |
| Date First Available | April 29 2013 |
4. Installation
Installation of the Moen 104439 Solenoid Housing should be performed by a qualified professional plumber. Ensure the main water supply is turned off before beginning any installation work to prevent water damage.
Refer to the specific installation instructions provided with the compatible Moen commercial faucet model (8301, 8302, 8303, or 8304) for detailed, step-by-step guidance. The solenoid housing connects to the faucet's water lines and electrical control system. Proper sealing of all connections and secure electrical wiring are crucial for safe, leak-free, and effective operation.
- Safety First: Always turn off the water supply and disconnect power before installation.
- Compatibility: Ensure the solenoid housing is correctly matched with your Moen commercial faucet model.
- Connections: Securely attach water inlet and outlet lines. Make sure electrical connections are tight and insulated.
- Testing: After installation, slowly turn on the water supply and check for leaks. Test the faucet's operation to confirm the solenoid is functioning correctly.
5. Operation
The Moen 104439 Solenoid Housing functions as an electromechanical valve that precisely controls water flow to the connected commercial faucet. Its operation is integrated with the faucet's control system, typically found in sensor-activated or electronic faucets.
- When the compatible Moen commercial faucet (e.g., a sensor-activated model) detects a user or receives a signal to dispense water, an electrical current is sent to the solenoid within the housing.
- This current energizes the solenoid, causing it to open the internal valve.
- Water then flows through the solenoid housing and out of the faucet.
- When the faucet's control system determines that water is no longer needed (e.g., user moves away from the sensor), the electrical current to the solenoid is interrupted.
- The solenoid de-energizes and closes the internal valve, stopping the water flow.
This automated process ensures efficient water usage and provides hands-free operation, which is essential in commercial and public health environments.
6. Maintenance
Proper maintenance of the solenoid housing ensures reliable performance and extends its lifespan. Regular inspections and adherence to these guidelines are recommended:
- Visual Inspection: Periodically inspect the solenoid housing and all connected plumbing and electrical lines for any visible signs of leaks, corrosion, or physical damage.
- Connection Integrity: Ensure all water connections are tight and free from drips. Verify that electrical connections are secure and that wiring insulation is intact.
- Filter Cleaning: If the system includes an inline filter before the solenoid, check and clean it regularly to prevent debris from entering and obstructing the solenoid valve.
- Cleaning: Clean the exterior of the solenoid housing with a soft, damp cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish or internal components.
- Professional Service: For any internal component maintenance, repair, or replacement, it is highly recommended to consult a qualified plumbing technician or Moen Commercial service professional.
7. Troubleshooting
This section provides solutions to common issues you might encounter with the Moen 104439 Commercial Solenoid Housing. Always ensure the water supply is off and power is disconnected before attempting any repairs.
| Problem | Possible Cause & Solution |
|---|---|
| No Water Flow |
|
| Continuous Water Flow |
|
| Weak Water Flow |
|
If these troubleshooting steps do not resolve the issue, contact Moen Commercial customer support or a qualified professional.
8. Warranty and Support
Warranty Information: The Moen 104439 Commercial Solenoid Housing is covered by a Lifetime Limited Warranty. This warranty ensures the product is free from defects in material and manufacturing workmanship under normal use. For complete details regarding coverage, limitations, and how to make a claim, please refer to the official Moen Commercial warranty documentation available on the Moen website or contact customer service.
Customer Support: For technical assistance, replacement parts, or any questions regarding the installation, operation, or maintenance of your Moen 104439 Commercial Solenoid Housing, please contact Moen Commercial customer service. Our dedicated support team is available to provide expert guidance.
Please have your product model number (104439) and purchase information ready when contacting support.