Four Seasons 20051 A/C Condenser Fan Switch

Reliable A/C Condenser Fan Switch for Buick, Oldsmobile, Pontiac

The Four Seasons Pressure Switch 20051 is designed to maintain optimal A/C condenser fan operation in select Buick, Oldsmobile, and Pontiac models. Engineered for system-mounted installation, this pressure switch ensures precise fan control based on refrigerant pressure levels.

• Connector color: Black with female terminals
• Two-terminal design for secure electrical connection
• Fitting thread size: 10mm x 1.25 for proper system mounting
• Operates between 170 psi (off) and 205 psi (on) for accurate fan cycling
• Constructed from durable plastic and metal materials
• Meets or exceeds OEM specifications for reliable performance
• Compatible with Buick 88, 98, LeSabre, Park Avenue; Oldsmobile 88, 98; Pontiac Bonneville, Regal, Riviera

About the Four Seasons Pressure Switch Product Line

The Pressure Switch line from Four Seasons focuses on pressure-activated components that regulate HVAC system functions. The 20051 A/C condenser fan switch is part of this line, providing precise pressure-based control to engage or disengage the condenser fan. This ensures the A/C system maintains proper operating temperatures and pressure levels, contributing to system efficiency and longevity.

Product Details and Functionality

This A/C condenser fan switch is designed to mount directly on the system, utilizing a 10mm x 1.25 threaded fitting for secure installation. The switch features a closed fan open/closed state and operates within a pressure range of 170 psi to turn off and 205 psi to turn on the fan. The black female connector with two terminals allows for straightforward electrical integration. Constructed from a combination of plastic and metal, the switch is built to withstand the demands of automotive HVAC environments.

Common Applications and Issues Addressed

• Prevents condenser fan from running continuously, reducing unnecessary wear
• Ensures fan activates at correct refrigerant pressure to avoid overheating
• Helps maintain proper A/C system pressure for efficient cooling
• Resolves intermittent or non-functioning condenser fan problems
• Addresses pressure switch failures that cause A/C system shutdowns

Installation Notes and Tips

When installing the Four Seasons Pressure Switch 20051, ensure the system is depressurized and the vehicle is off. The switch mounts directly to the A/C system using the 10mm x 1.25 threaded fitting. Confirm the connector terminals match the vehicle wiring harness for a secure connection. Proper torque should be applied to avoid leaks or damage. Verify operation by monitoring fan cycling at the specified pressure thresholds.

Quality Assurance and Warranty

This pressure switch meets or exceeds OEM standards, ensuring compatibility and durability. Four Seasons backs this part with quality assurance to provide reliable performance in Buick, Oldsmobile, and Pontiac HVAC systems. Warranty details are available through Four Seasons and typically cover defects in material and workmanship.