Carrier HH22HB076 Fan Switch

The Carrier HH22HB076 Fan Switch is a critical OEM replacement part designed for precise thermal management in Carrier, Bryant, and Payne HVAC systems. This temperature-actuated switch features an SPST (Single Pole Single Throw) configuration, engineered to engage at 70°F (CO70) and cutout at 60°F (CI60). Built for high-reliability continuous duty applications, it serves as a primary control interface for indoor fan motors in furnaces, air handlers, and heat pump systems. With an electrical rating of 10/5 FLA at 120/240 VAC, this limit switch ensures heat exchanger protection and optimized airflow regulation. Replacing a faulty fan control switch with this genuine HH22HB076 component restores factory-spec on-off cycles, preventing short cycling and maintaining the integrity of the blower motor circuit. Professionals prefer this 0.3-pound unit for its exact mounting compatibility and plug-and-play integration with existing wiring harnesses.

• Precise Thermal Calibration: Factory-set to 60°F Close (CI) and 70°F Open (CO) for accurate ventilation control.
• OEM Compatibility: Direct cross-reference for Carrier HH22HB076, ensuring seamless fitment in residential HVAC units.
• Enhanced System Longevity: Protects the blower assembly and heat exchanger by preventing over-temperature conditions.
• Electrical Durability: Rated for 120/240 VAC, supporting standard motor starter and contactor loads.
• Lightweight Robust Design: Compact 0.3-lb build facilitates rapid field installation in tight control boxes.

Is the HH22HB076 compatible with other HVAC brands?
Yes, this part is a standard OEM replacement for most brands under the Carrier Global umbrella, including Bryant and Payne, provided the part number and thermal specs match.

What are the symptoms of a failing fan switch?
Technicians often diagnose a failed fan limit switch when the blower motor remains on indefinitely or fails to trigger after the heat exchanger reaches the startup temperature.

How do I verify the CI60 and CO70 ratings?
These technical designations refer to the Close-In (60°F) and Cut-Out (70°F) temperatures. Always verify your furnace’s sequence of operation to ensure these setpoints align with manufacturer specifications.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.