Introduction
This manual provides essential information for the proper installation, operation, and maintenance of the AO Smith 100111017 User Interface Module. Please read this manual thoroughly before attempting any procedures to ensure safe and efficient use of the product.

Figure 1: The AO Smith 100111017 User Interface Module. This image shows the green circuit board with various electronic components, including chips and connectors, designed to provide a display and control interface for compatible systems.
Setup and Installation
The AO Smith 100111017 User Interface Module is designed for integration into specific AO Smith water heater systems. Installation should only be performed by a qualified technician following all local codes and manufacturer's instructions for the primary appliance.
Pre-Installation Checklist:
- Ensure the main appliance is powered off and disconnected from its power source.
- Verify that the module is the correct replacement part for your specific model.
- Gather necessary tools (e.g., screwdriver, wire cutters, multimeter).
- Review the wiring diagram provided with the main appliance.
Installation Steps:
- Carefully remove the existing user interface module, if applicable, noting all connections.
- Align the new AO Smith 100111017 module with the designated slot or mounting points.
- Secure the module using appropriate fasteners.
- Connect all wiring harnesses and cables to their respective ports. Ensure connections are secure and correctly polarized.
- Double-check all connections before restoring power to the main appliance.
Caution: Improper installation can lead to system malfunction, damage, or personal injury. If you are unsure about any step, consult a professional.
Operating Instructions
Once installed and power is restored, the AO Smith 100111017 User Interface Module will typically initialize automatically. The module serves as the primary interface for monitoring and controlling the associated appliance.
Basic Functions:
- Display: The module features a display screen (if applicable) that shows operational status, temperature settings, error codes, and other relevant information.
- Navigation Buttons: Use the integrated buttons (e.g., Up, Down, Select, Menu) to navigate through menus and adjust settings.
- Setting Adjustment: Follow on-screen prompts to modify parameters such as temperature setpoints, operating modes, or diagnostic settings.
Refer to the main appliance's user manual for specific instructions on how to interpret display readings and utilize all available functions through this interface.
Maintenance
The AO Smith 100111017 User Interface Module requires minimal maintenance. Regular inspection and cleaning can help ensure its longevity and proper function.
Cleaning:
- Before cleaning, ensure the main appliance is powered off.
- Gently wipe the display and module surface with a soft, damp cloth.
- Do not use abrasive cleaners, solvents, or excessive moisture, as these can damage the electronic components.
Inspection:
- Periodically check for any visible damage to the module or its connections.
- Ensure all cables are securely attached and free from kinks or fraying.
Troubleshooting
This section provides solutions to common issues you might encounter with the AO Smith 100111017 User Interface Module. For more complex problems, refer to the main appliance's service manual or contact a qualified technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| Module display is blank. | No power to the appliance; loose connection; module failure. | Check power supply to the main appliance. Verify all module connections are secure. If problem persists, module may need replacement. |
| Buttons are unresponsive. | Module frozen; physical damage to buttons. | Cycle power to the main appliance. Inspect buttons for physical obstruction or damage. |
| Incorrect readings on display. | Sensor malfunction; calibration issue; module fault. | Refer to the main appliance's manual for sensor diagnostics. Contact technical support if readings remain inaccurate. |
Specifications
- Model Number: 100111017
- Part Number: 100111017
- Manufacturer: AO SMITH
- Product Dimensions: 5.95 x 3.6 x 5.95 inches
- Item Weight: 14.4 ounces
- First Available Date: July 20, 2017
- UPC: 020363155988
Warranty and Support
For specific warranty information regarding the AO Smith 100111017 User Interface Module, please refer to the documentation provided with your main appliance or contact AO Smith directly. Warranty terms may vary based on purchase date and region.
For technical support or assistance with installation and troubleshooting beyond the scope of this manual, please contact AO Smith customer service or a certified service technician. You can often find contact information on the manufacturer's official website or within the main appliance's documentation.
Note: Protection plans may be available for purchase separately, offering extended coverage. Refer to your retailer for details.