Four Seasons 20399 HVAC Blower Motor Resistor - Front or Rear

Overview of Four Seasons Resistor Block 20399

The Four Seasons Resistor Block 20399 is designed to regulate the blower motor speed in select Audi, Porsche, and Volkswagen vehicles. This HVAC blower motor resistor ensures variable speed control for efficient climate system performance in models like the Audi Q7, Porsche Cayenne, and Volkswagen Touareg.

• Connector Gender: Female / female
• Connector Shape: Square / rectangle
• Number of Terminals: 4 / 2
• Speed Control: Variable
• Type: Switches

Detailed Product Description

The Four Seasons Resistor Block 20399 is a critical component within the HVAC system, responsible for controlling the blower motor's speed by adjusting electrical resistance. Featuring a female/female connector with a square and rectangular shape, this resistor block supports multiple terminal configurations (4 and 2 terminals) to accommodate specific wiring setups. Its variable speed capability allows for precise adjustment of airflow inside the vehicle cabin, contributing to optimal heating and cooling performance.

This resistor block is part of the Four Seasons Resistor Block product line, which focuses on reliable and durable HVAC blower motor resistors designed to meet OEM specifications. The product line emphasizes compatibility and performance, ensuring that each resistor block integrates seamlessly with the vehicle's existing HVAC system.

Compatible Vehicles and Applications

This resistor block is compatible with the following makes and models:

• Audi Q7
• Porsche Cayenne
• Volkswagen Touareg

It is specifically engineered to replace faulty or worn blower motor resistors in these vehicles, restoring proper blower motor speed control and HVAC functionality.

Common Issues Addressed by Part Number 20399

• Inconsistent blower motor speeds or blower stuck on one speed
• HVAC blower motor not responding to speed control settings
• Intermittent or no airflow from vents
• Overheating or electrical resistance failure in blower motor circuit
• Reduced climate control efficiency in Audi Q7, Porsche Cayenne, or Volkswagen Touareg

Installation Notes and Tips

When installing the Four Seasons Resistor Block 20399, ensure the vehicle's battery is disconnected to prevent electrical shorts. Verify the connector gender and shape match the existing wiring harness to avoid compatibility issues. Properly secure the resistor block to prevent vibration damage and ensure good electrical contact. It is recommended to inspect the blower motor and related wiring for damage during installation.

Quality Assurance and Warranty

Four Seasons manufactures the Resistor Block 20399 to meet or exceed OEM standards for durability and performance. While specific warranty details may vary, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. This ensures reliable operation and peace of mind when replacing the HVAC blower motor resistor in your Audi Q7, Porsche Cayenne, or Volkswagen Touareg.