LENNOX 17W11 - OEM Replacement Heat Pump Defrost Sensor

Defrost Thermostat

The 17W11 is an OEM replacement heat pump defrost sensor that ensures your comfort all year long by restricting airflow to your heat pump system at the appropriate time. This easy-to-install defrost thermostat requires no wires for installation; simply mount it on your return air duct and plug it into a standard 120-volt/30-amp electrical outlet. It comes with a mounting plate for more convenient installation, and will work with Lennox H3 and C96 models only.

Be prepared for the weather with our Lennox 17W11 - OEM Replacement Heat Pump Defrost Sensor. This defrost thermostat is designed to work with your heat pump system and can be installed at home. It helps to prevent excessive frost buildup in the outdoor coil which helps improve energy efficiency and comfort in your home.

Lennox and other manufacturer' replacement parts like the 17W11 - OEM Replacement Heat Pump Defrost Sensor are shipped free of charge by our trusted manufacturers to ensure that you find exactly what you need. Lennox replacement parts ship same business day whenever possible, and in the rare case an item is out-of-stock or discontinued, we guarantee a full refund. You will definitely get your money's worth on this specific replacement defrost sensor - thanks to its affordable price and quality craftsmanship. Don't wait any longer to get your heat pump working as efficiently as possible! Simply replace the switch with a new one from

The Lennox 17W11 is a heat pump defrost thermostat that features manual-override, No. 2 lead and a switching temperature of 60°C (140°F) .

An older heat pump with a wired defrost sensor can fail in one of two ways: the defrost cycle doesn't turn off or it fails to come on when needed. If your heat pump is failing to run its defrost cycle, replace the defrost thermostat to get your heat pump up and running again.

Lennox Heating & Cooling Defroster Sensor, - leads your climate comfort system into defrost mode when frost or ice accumulates on the outdoor coil. The Defrost Sensor accurately senses outdoor coil temperature providing accurate sensor readings and ensure the correct operating characteristics of the entire system.

The Heat Pump Defrost Sensor is used to sense the temperature of the evaporator coil in many heat pump systems. It can be used as an OEM replacement for the following Lennox Part Numbers: 4024285, 1139300, 1228150-01, 7117220, 2128419, 2126639, 297858-001, 2978290-001, and 9149017