Description
International Comfort Products 1179340 L165-40F Limit Switch
The International Comfort Products (ICP) 1179340 is a genuine OEM high-limit switch designed to protect your furnace from dangerous overheating conditions. Engineered to the same exacting standards as the original equipment, this direct replacement limit switch ensures your heating system operates safely and efficiently.
How It Works
The L165-40F limit switch continuously monitors the temperature inside the furnace heat exchanger plenum. When temperatures rise to an unsafe level, the switch automatically interrupts the burner circuit, preventing heat exchanger damage and potential fire hazards. Once the unit cools to a safe operating temperature, the switch resets and restores normal furnace operation.
Key Features
- Genuine OEM replacement part from International Comfort Products
- L165-40F designation: opens at 165°F, resets at approximately 125°F (40°F differential)
- Provides critical over-temperature protection for the heat exchanger
- Direct drop-in replacement — no modifications required
- Helps maintain system reliability and extend equipment life
- Compatible with select ICP, Heil, Tempstar, Arcoaire, and Comfortmaker furnace models
Application
- Designed for use in residential and light commercial gas furnaces
- Replaces worn, faulty, or tripped limit switches that fail to reset
- Ideal for HVAC technicians performing routine maintenance or emergency service calls
Why Choose Genuine OEM Parts?
Using genuine International Comfort Products replacement parts ensures proper fit, function, and warranty compliance. Aftermarket substitutes may not meet the precise temperature ratings or electrical specifications required for safe furnace operation. Trust OEM quality to keep your system running at peak performance.
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