Description
Product Overview
The International Comfort Products 34332904 is an OEM auto limit switch engineered to protect furnaces and air handlers from dangerous overheating conditions. With a fixed trip point of 165°F and an automatic reset at 145°F, this limit switch continuously monitors heat exchanger temperatures and interrupts the burner circuit whenever safe operating thresholds are exceeded — then automatically restores normal operation once temperatures return to the safe range.
Key Features
- OEM International Comfort Products replacement part (SKU: 34332904)
- Temperature trip point: 165°F (opens circuit on high temperature)
- Automatic reset temperature: 145°F (closes circuit when temperature drops)
- 3-inch insertion depth for accurate heat exchanger sensing
- Auto-reset design eliminates the need for manual intervention after a thermal event
- Direct OEM replacement ensures proper fit and reliable performance
Application
This limit switch is a direct OEM replacement designed for use in International Comfort Products furnaces and air handling equipment. It mounts in the heat exchanger plenum area, using its 3″ insertion depth to accurately sense supply-air or heat exchanger temperatures. When the system overheats — due to restricted airflow, a dirty filter, or a blower malfunction — the switch opens the control circuit to shut down the burner, preventing equipment damage and potential safety hazards.
Why Choose an OEM Limit Switch?
Using a genuine ICP replacement limit switch ensures the correct trip and reset temperatures, proper electrical ratings, and a secure mechanical fit. Aftermarket substitutes may not match the precise thermal calibration required for safe, code-compliant operation. This part is the right choice for HVAC technicians performing warranty repairs or quality service calls on ICP-branded equipment.
Specifications
- Brand: International Comfort Products (ICP)
- Part Number: 34332904
- Switch Type: Auto Limit (Automatic Reset)
- Trip Temperature: 165°F
- Reset Temperature: 145°F
- Insertion Depth: 3 inches
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