Four Seasons 20968 HVAC Binary Switch

Four Seasons 20968 Pressure Switch Overview

The Four Seasons Pressure Switch 20968 is a system-mounted HVAC binary switch built for pressure-based compressor control. It uses a male connector, a 2-terminal layout, and a black steel body with a 3/8 in. x 24 male fitting thread size.

Compatible with select 1992-1993 Isuzu Rodeo, 1992 Isuzu Trooper, 1993 Isuzu Amigo, 1993 Isuzu Pickup, and 1993 Isuzu Trooper applications, this Four Seasons 20968 pressure switch meets or exceeds OEM requirements for direct replacement service.

Key Features

• Binary HVAC pressure switch for system-mounted installation
• Male connector with 2 terminals
• Black steel construction
• 3/8 in. x 24 male fitting thread size
• Open contact state with low-pressure operate points at 30 psi off and 33 psi on
• Meets or exceeds OEM specifications

Product Details

Four Seasons Pressure Switch 20968 is used in automotive air conditioning systems to monitor refrigerant pressure and signal compressor operation through a binary switch design. The pressure-controlled open/closed function helps the HVAC system respond to low-pressure conditions, supporting proper compressor cycling in the vehicles listed above. This part cross-references UAC SW10026C for the same application.

Common Issues This Part May Address

• Compressor not engaging due to pressure switch failure
• Intermittent A/C cycling caused by an inaccurate pressure signal
• A/C system shutdown from a worn or electrically open switch
• Incorrect compressor control on Isuzu Rodeo, Trooper, Amigo, or Pickup models
• HVAC pressure circuit faults related to the system-mounted switch

Installation Notes and Tips

Verify the connector style, fitting thread size, and system-mounted location before installation. Confirm the vehicle build date and application notes, since some listed Isuzu models apply only to specific production periods such as “to 3/93.” Match the existing pressure switch configuration and inspect the HVAC circuit for related wiring or refrigerant-pressure issues during replacement.

Quality Assurance

Four Seasons 20968 is an OEM-style replacement part that meets or exceeds original equipment requirements for the listed applications. Four Seasons pressure switch 20968 is built for direct-fit service in select Isuzu HVAC systems.