Four Seasons 36663 A/C Condenser Fan Switch

Reliable A/C Condenser Fan Switch for Select GM Vehicles

The Four Seasons Pressure Switch part number 36663 is designed to maintain optimal air conditioning system performance in various Buick, Chevrolet, Oldsmobile, and Pontiac models. This system-mounted pressure switch ensures proper condenser fan operation by monitoring refrigerant pressure levels.

• Pressure switch with 2 male terminals for secure electrical connection
• Fitting thread size of 3/8 in. x 24 for precise system mounting
• Operates between 125 PSI (off) and 190 PSI (on) to control fan activation
• Constructed from durable plastic and metal materials for longevity
• Compatible with harness connector 37227 and includes item 24606
• Meets or exceeds OEM specifications for reliable performance

About the Four Seasons Pressure Switch Product Line

The Four Seasons Pressure Switch line focuses on pressure-activated components designed to regulate HVAC system functions. This Pressure Switch model 36663 is engineered to monitor refrigerant pressure and control the condenser fan accordingly, helping maintain proper cooling efficiency in the vehicle’s air conditioning system.

Detailed Product Description

This A/C condenser fan switch is a pressure-type switch that mounts directly to the system, providing accurate fan open/closed control based on refrigerant pressure. The switch activates the condenser fan when pressure reaches 190 PSI and deactivates it at 125 PSI, ensuring the air conditioning system operates within safe parameters. The 2-terminal male connector and 3/8 in. x 24 thread size allow for straightforward installation and compatibility with the specified GM vehicles.

Common Applications and Issues Addressed

• Prevents condenser fan from running continuously, reducing unnecessary wear
• Helps avoid overheating of the A/C system by activating the fan at correct pressure
• Resolves intermittent or non-functioning condenser fan problems
• Maintains proper refrigerant pressure for efficient cooling
• Supports system safety by preventing pressure-related damage

Installation Notes and Tips

• Ensure the system is depressurized before removing the old pressure switch
• Verify thread size compatibility (3/8 in. x 24) for proper fitment
• Use the correct harness connector (37227) for electrical connections
• Check for leaks after installation to maintain system integrity
• Follow vehicle-specific service manual instructions for safe installation

Quality Assurance and Warranty

The Four Seasons Pressure Switch 36663 is manufactured to meet or exceed OEM standards, ensuring reliable operation in compatible Buick, Chevrolet, Oldsmobile, and Pontiac models. Constructed from quality plastic and metal materials, this switch is built for durability. Warranty coverage details should be confirmed with the product documentation or supplier.