Lennox 45H83 - ( 45H8301 ) LIMIT CONTROL
Lennox 45H83 - (45H8301) Limit Control Switch – High-Temperature Safety Cutoff for Furnaces
The Lennox 45H83 (OEM part number 45H8301) is a high-quality limit control switch designed to protect your HVAC system from dangerous overheating conditions. Commonly installed in Lennox furnaces and air handlers, this temperature-sensitive safety device monitors internal air temperature and interrupts electrical current to shut down the burner or fan if temperatures rise above a factory-specified threshold.
Product Overview:
- Genuine OEM Replacement: Manufactured to Lennox's exact engineering standards for seamless fit and function.
- Reliable Thermal Protection: Prevents system damage by cutting off power to critical components when overheating is detected.
- Temperature Sensing Element: Precisely calibrated to respond to high-limit setpoints, providing dependable thermal control and system shutdown.
- Auto or Manual Reset: Depending on application, this unit may either reset automatically or require manual intervention (confirm with equipment specs).
- Versatile Compatibility: Suitable for use in a wide range of Lennox models—always verify compatibility with the original part number or service manual.
Technical Specifications:
- Part Number: 45H83 (also known as 45H8301)
- Type: Limit control switch
- Function: High limit temperature cutoff
- Voltage Rating: OEM-rated for system compatibility (typically 24V or line voltage)
- Reset Type: Auto or manual (dependent on system)
- Mounting: Bracket or direct-mount installation
Applications:
The 45H83 limit control is typically mounted near the heat exchanger, supply air plenum, or burner section of a furnace. It ensures the system shuts down safely before excessive heat can damage internal parts or cause unsafe conditions. This part is critical for maintaining UL and manufacturer safety standards in forced-air heating systems.
Benefits of Replacement:
- Prevents no-heat or shutdown conditions due to a failing high-limit switch
- Extends the lifespan of the furnace by preventing thermal stress
- Maintains system safety and code compliance
- Reduces the risk of costly emergency repairs
Why Buy from Beenimax.com?
- 100% Genuine Lennox OEM Parts
- Fast, Reliable Shipping
- Trusted by Contractors and Homeowners
- Expert Support and Hassle-Free Returns
- Competitive Pricing on HVAC Components
| Package Quantity | 1 Item |
|---|---|
| Item Returns | This item can be returned |
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