Four Seasons 20990 HVAC Pressure Transducer

Overview of Four Seasons Pressure Switch 20990

The Four Seasons Pressure Switch 20990 is a reliable HVAC pressure transducer designed for system-mounted applications. Engineered to meet or exceed OEM standards, this switch is compatible with various Ford, Lincoln, Mazda, and Mercury models, ensuring precise pressure monitoring in your vehicle's HVAC system.

• Brand: Four Seasons
• Brand Line: Pressure Switch
• Part Number: 20990
• Connector Shape: Round
• Connector Gender: Female
• Connector Pin Quantity: 3
• Fitting Thread Size: M10 x 1.25 (Female)
• Material: Plastic and metal construction
• Type: HVAC Pressure Transducer
• Weather Pack Connector: Yes
• Compatible with Ford, Lincoln, Mazda, Mercury models

Four Seasons Pressure Switch Product Line Details

The Pressure Switch line from Four Seasons focuses on delivering accurate pressure sensing components for HVAC systems. This product line includes pressure transducers designed for system-mounted installation, providing variable open/closed switching functionality. The 20990 model integrates seamlessly with factory HVAC systems, maintaining system integrity and performance.

Detailed Product Description

The Four Seasons Pressure Switch 20990 features a durable plastic and metal construction suitable for demanding automotive environments. It includes a round, female connector with three pins and a female fitting thread sized M10 x 1.25, ensuring secure and precise connections. The variable open/closed pressure switch function allows it to respond accurately to system pressure changes. Designed for system-mounted installation, this transducer supports reliable HVAC operation in vehicles such as the Ford F-150, Lincoln Navigator, Mazda Tribute, and Mercury Mountaineer.

Common Applications and Issues Addressed

• Detects and monitors HVAC system pressure to prevent compressor damage
• Helps resolve intermittent HVAC system cycling or failure to engage
• Prevents system overpressure conditions that can cause leaks or component wear
• Ensures proper operation of air conditioning and heating systems in Ford, Lincoln, Mazda, and Mercury vehicles
• Supports diagnostics for HVAC pressure-related faults

Installation Notes and Tips

• Ensure the system is depressurized before installation to avoid injury
• Verify the M10 x 1.25 female fitting thread matches the vehicle’s HVAC system port
• Use appropriate tools to avoid damaging the plastic and metal components
• Confirm the connector pins align correctly with the vehicle wiring harness
• Check for secure mounting to maintain accurate pressure readings

Quality Assurance and Warranty

The Four Seasons Pressure Switch 20990 meets or exceeds OEM specifications, providing dependable performance and durability. It is manufactured with quality materials to withstand automotive environmental conditions. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in material and workmanship.