International Comfort Products 1010652 Furnace High Limit Switch - 170-20F 3-Inch

The International Comfort Products 1010652 is an OEM replacement high limit switch designed for use in furnaces and air handlers across the ICP family of brands. With a 3-inch insertion depth and a fixed trip point of 170°F with a 20°F reset differential, this safety control protects heating systems from dangerous overtemperature conditions.

When plenum temperatures rise to 170°F, the limit switch opens the circuit, cutting power to the burner or blower to prevent heat exchanger damage and fire hazards. Normal operation resumes automatically once the temperature drops to the 150°F reset threshold (170°F minus the 20°F differential). The 3-inch probe length ensures accurate sensor placement within the airflow path for reliable, nuisance-free operation.

Key Features:

• Trip Point: Opens at 170°F to protect against overheating
• Reset Differential: 20°F — resets at approximately 150°F
• Insertion Depth: 3 inches for accurate airflow-path temperature sensing
• OEM Replacement: Genuine International Comfort Products part ensuring exact fit and performance
• Brand Compatibility: Direct fit for Heil, Heil Quaker, Tempstar, Arcoaire, and Comfortmaker furnace and packaged units
• Safety Function: Prevents heat exchanger damage, short cycling, and fire risk from plenum overtemperature

This is a genuine OEM component. Installing a switch with a different temperature rating or insertion depth can result in inaccurate temperature readings, nuisance tripping, or a fire hazard. Always replace with the exact 170-20F, 3-inch specification.