Four Seasons 35972 A/C Condenser Fan Switch

Reliable A/C Condenser Fan Switch for GM Vehicles

The Four Seasons Pressure Switch 35972 is designed to maintain optimal cooling system performance in a wide range of General Motors vehicles. This compressor-mounted pressure switch ensures your A/C condenser fan operates efficiently by monitoring refrigerant pressure and activating the fan at the correct thresholds.

• Pressure switch with 2 male terminals for secure electrical connection
• Clip-in fitting with no threads for easy installation on compressor
• Operates fan open at 210 PSI and closes at 280 PSI for precise cooling control
• Constructed from durable plastic and metal materials for long-lasting use
• Includes harness connector 37227 and item 24623 for complete replacement
• 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 in vehicles. The Pressure Switch 35972 is part of this line, engineered specifically for compressor mounting to control the cooling fan based on refrigerant pressure. This ensures proper fan cycling to protect the A/C system and maintain cabin comfort in compatible Buick, Chevrolet, GMC, and Cadillac models.

Detailed Product Description

This A/C condenser fan switch (part number 35972) is a pressure-type switch that mounts directly on the compressor. It features a clip-in fitting with no threads, simplifying installation and replacement. The switch has two male terminals and operates by opening the fan circuit at 210 PSI and closing it at 280 PSI, providing accurate control of the cooling fan based on system pressure. Made from a combination of plastic and metal, it offers durability and reliable operation under typical automotive conditions. The included harness connector (37227) and item 24623 ensure compatibility and ease of installation.

Common Applications and Issues Addressed

• Prevents A/C condenser fan from running continuously or failing to engage
• Helps maintain proper refrigerant pressure for efficient cooling
• Reduces risk of compressor overheating by controlling fan operation
• Solves intermittent fan cycling or no fan operation in HVAC systems
• Restores proper function in Buick, Chevrolet, GMC, and Cadillac A/C systems

Installation Notes and Tips

• Ensure vehicle compatibility with the listed makes and models before installation
• Disconnect battery and relieve system pressure prior to removal
• Clip-in design allows for straightforward compressor mounting without thread damage
• Verify correct harness connector (37227) is used for secure electrical connection
• Test switch operation at specified pressure points (210 PSI open, 280 PSI close) after installation

Quality Assurance and Warranty

The Four Seasons Pressure Switch 35972 meets or exceeds OEM standards, ensuring dependable performance in your vehicle’s HVAC system. Manufactured with quality plastic and metal components, this switch is built to withstand typical automotive operating conditions. Please refer to Four Seasons’ warranty policy for specific coverage details.