Four Seasons 35967 A/C Condenser Fan Switch

Reliable A/C Condenser Fan Switch for Chevrolet and GMC Vehicles

The Four Seasons Pressure Switch part number 35967 is designed to maintain optimal cooling system performance in select Chevrolet, Geo, and GMC models. This compressor-mounted pressure switch ensures your A/C condenser fan operates efficiently by monitoring system pressure and activating the fan as needed.

• Connector color: Purple for easy identification
• Two male terminals for secure electrical connection
• Clip-in fitting with no threads for straightforward installation
• Operates between 160 PSI (off) and 250 PSI (on) to regulate fan activity
• Durable plastic and metal construction meets or exceeds OEM standards

About the Four Seasons Pressure Switch Product Line

The Pressure Switch line by Four Seasons focuses on precise pressure monitoring components for automotive HVAC systems. This product line includes switches designed to activate cooling fans based on refrigerant pressure, helping to protect the compressor and maintain system efficiency. The 35967 switch is a clip-in, compressor-mounted type that integrates seamlessly with factory harness connectors, ensuring reliable operation in various Chevrolet and GMC vehicles.

Detailed Product Description

The Four Seasons 35967 A/C condenser fan switch is engineered to monitor refrigerant pressure within the air conditioning system and control the cooling fan accordingly. Featuring a purple connector and two male terminals, this pressure switch clips directly onto the compressor without the need for threaded fittings. It operates by turning the fan on at 250 PSI and off at 160 PSI, maintaining proper system temperature and preventing compressor damage. Compatible with a wide range of Chevrolet and GMC models including Silverado, Suburban, Blazer, and Yukon, this switch is an essential component for maintaining HVAC system performance.

Common Applications and Issues Addressed

• Prevents A/C compressor overheating by regulating fan operation
• Ensures consistent cooling performance in Chevrolet Silverado and GMC Sierra models
• Replaces faulty or worn pressure switches causing intermittent fan operation
• Helps resolve A/C system pressure-related shutdowns or failures
• Maintains proper refrigerant pressure to avoid compressor damage

Installation Notes and Tips

• Designed for compressor-mounted installation with clip-in fitting—no threading required
• Ensure the purple connector matches the factory harness connector 37227 for compatibility
• Disconnect battery before installation to prevent electrical shorts
• Verify pressure switch operation by checking fan activation at specified PSI levels
• Use appropriate tools to avoid damage to plastic and metal components during installation

Quality Assurance and Warranty

The Four Seasons Pressure Switch 35967 is manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. Constructed from high-quality plastic and metal materials, this switch is built to withstand the demands of automotive HVAC systems. While specific warranty details may vary, Four Seasons products typically include a limited warranty covering defects in materials and workmanship.