Four Seasons 20428 HVAC Blower Motor Resistor

Overview of Four Seasons Resistor Block 20428

The Four Seasons Resistor Block 20428 is a critical HVAC blower motor resistor designed to regulate fan speeds in vehicle heating and cooling systems. Featuring a female rectangular connector and four terminals, this resistor block ensures consistent performance for compatible automotive HVAC systems.

• Brand: Four Seasons
• Brand Line: Resistor Block
• Part Number: 20428
• Connector Gender: Female
• Connector Shape: Rectangular
• Number of Terminals: 4
• Speed Setting: Fixed #3
• Type: Switches

Detailed Product Description

The Four Seasons Resistor Block 20428 is engineered to provide reliable control of blower motor speeds within automotive HVAC systems. This resistor block features a fixed speed setting (#3) and a four-terminal design that connects via a female rectangular connector, ensuring secure and precise electrical connections. It is part of the Four Seasons Resistor Block product line, which focuses on delivering durable and efficient resistor components tailored for HVAC blower motor applications. This part is essential for maintaining proper airflow and temperature regulation inside the vehicle cabin.

Common Applications and Issues Addressed

• Restores proper blower motor speed control in HVAC systems
• Resolves issues with blower fan stuck on a single speed
• Fixes intermittent or non-functioning blower motor speeds
• Eliminates overheating or electrical resistance problems in blower circuits
• Improves overall HVAC system reliability in vehicles

Installation Notes and Tips

• Ensure the vehicle’s HVAC system is powered off before installation
• Verify connector type matches the female rectangular connector on this resistor block
• Check for any corrosion or damage on terminals before connecting
• Securely fasten the resistor block to prevent vibration-related disconnections
• Consult vehicle-specific service manual for exact location and removal procedures

Quality Assurance and Warranty

Four Seasons manufactures the Resistor Block 20428 to meet or exceed OEM specifications for HVAC blower motor resistors. This part undergoes rigorous quality control to ensure durability and consistent electrical performance. While specific warranty details may vary, Four Seasons typically offers coverage against defects in materials and workmanship, providing confidence in the product’s reliability for automotive HVAC repairs.