It is used to resolve error codes on the water heater and maintain its normal operation AP14720-1 FV Sensor is compatible with Rheem, Ruud, and Richmond water heater models Engineered with high-quality PVC/plastic and a protective shell for maximum durability and electrical conductivity, delivering extended reliable performance in water heater applications The AP14720 vapor sensor, harness, and connectors are engineered for exact compatibility with Rheem Sensor Harness AP14720-1 FV and SP20172. This precision design ensures durable, efficient, and reliable operation, providing enhanced safety and performance Includes two Water Heater Sensor Harnesses (Part No.: AP14720-1). Please feel free to contact us if you have any questions The AP14720-1 FV sensor harness is designed to detect the presence of flammable vapors in the vicinity of a water heater. This safety feature helps prevent flammable vapors from igniting, reducing the risk of fire or explosion in the event of a gas leak. When the sensor detects flammable vapors, it sends a signal to the control unit to shut down the burner, ensuring safe operation of the water heater. This sensor harness is compatible with a wide range of Rheem water heater models. It is specifically designed to work with select Rheem, Ruud, and Richmond water heaters to ensure proper installation and operation. Be sure to verify compatibility with your specific water heater model before purchasing to ensure proper operation. Construction and Design: The FV sensor harness is manufactured to high quality and durability standards. It includes the sensor, harness, and connectors, all designed to withstand the operating environment of the water heater. The rugged construction ensures reliable performance over the life of the water heater, providing consistent and accurate detection of flammable vapors. Installation: Installation of the AP14720-1 FV sensor harness is simple and can generally be performed by following the manufacturer's instructions. It involves connecting the sensor harness to the designated port on the water heater control unit. Proper installation is critical to the proper functioning of the sensor, and if you are not familiar with water heater components, it is recommended that a professional technician perform the installation. Maintenance and Replacement: Regular inspection and maintenance of the FV sensor harness is critical to ensure it continues to function properly. If a sensor fails or becomes damaged, it should be replaced immediately to maintain the safety function of the water heater. The sensor harness is designed to be easily replaced, allowing the homeowner or technician to quickly restore the safety function of the water heater without extended downtime.