Description
The International Comfort Products 1191126 is an OEM replacement L150-40F high-limit switch engineered to protect your furnace from dangerous overheating conditions. Designed as a direct factory replacement for compatible International Comfort Products heating systems, this limit switch delivers reliable, repeatable performance to keep equipment operating safely and efficiently.
How It Works
The L150-40F designation defines the switch’s operating parameters: it opens (trips) at 150°F to interrupt the burner circuit when supply-air temperatures become unsafe, and automatically resets once temperatures fall by 40°F (reset point: 110°F). This automatic-reset action restores normal furnace operation without requiring a manual reset, minimizing nuisance service calls.
Key Features
- OEM replacement part for International Comfort Products furnaces
- Opens at 150°F to protect against heat exchanger overheating
- 40°F differential — automatically resets at approximately 110°F
- Interrupts burner circuit on high-temperature fault for safe shutdown
- Direct drop-in replacement — no modifications required
- Durable construction for long service life in residential and light-commercial applications
Specifications
- Part Number: 1191126
- Model: L150-40F
- Brand: International Comfort Products (ICP)
- Switch Type: High-Limit (Automatic Reset)
- Set Point (Opens): 150°F
- Differential: 40°F
- Reset Point (Closes): ~110°F
Application
This limit switch is a critical safety component in ICP gas furnaces. It monitors supply-air or heat exchanger temperatures and shuts down the burner if a blocked filter, failed blower motor, or restricted airflow causes temperatures to exceed safe limits. Always verify compatibility with your specific furnace model before installation.
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