International Comfort Products 1188308 Temperature Limit Switch - OP160 CL140

The International Comfort Products 1188308 is a genuine OEM replacement temperature limit switch designed for use in ICP, Heil, Tempstar, and related brand HVAC furnace systems. This high-limit switch is rated to open at 160°F (OP160) and close at 140°F (CL140), providing reliable overheat protection and automatic reset functionality.

Temperature limit switches serve as a critical safety and control component in forced-air furnace systems. When the heat exchanger or plenum air temperature exceeds the rated threshold, the switch opens the circuit to shut down the burner or blower, preventing equipment damage and potential fire hazards. Once temperatures return to the safe reset point, the switch closes and normal operation resumes.

Key Features:

• Opens at 160°F — trips the circuit to protect against overheating
• Closes at 140°F — automatic reset when temperature returns to safe range
• Genuine OEM part — engineered for direct fit in compatible ICP family equipment
• Ensures proper integration with furnace control boards and safety circuits
• Helps prevent heat exchanger damage caused by excessive temperatures
• Also sold under ICP brand family: Heil, Tempstar, Arcoaire, Comfortmaker, Keeprite, and Day & Night

Replacing a failed or out-of-spec temperature switch with a genuine OEM part like the ICP 1188308 ensures proper calibration, reliable safety shutoff, and long-term compatibility with your furnace's control system. Always verify your unit's model and wiring diagram before installation.