Four Seasons 20660 HVAC Blower Motor Resistor

Overview of Four Seasons Resistor Block 20660

The Four Seasons Resistor Block 20660 is designed to regulate the blower motor speed in select BMW models. This HVAC blower motor resistor ensures variable speed control for your vehicle's heating and cooling system, maintaining optimal cabin comfort.

• Connector Gender: Female / female
• Connector Shape: Rectangular
• Number of Terminals: 3 / 2
• Speed Control: Variable
• Type: Switches

About the Four Seasons Resistor Block Product Line

The Resistor Block line by Four Seasons focuses on reliable HVAC components that manage blower motor speeds through precise resistance control. This product line is engineered to meet OEM specifications, providing consistent performance and compatibility with various vehicle HVAC systems, including BMW models.

Detailed Product Description

The Four Seasons 20660 resistor block is a critical component in the HVAC system, responsible for controlling the blower motor's variable speeds. Featuring a rectangular female/female connector and multiple terminals (3 / 2), it integrates seamlessly with the blower motor assembly. This resistor block switches the electrical current to adjust fan speed, ensuring smooth operation of the heating and air conditioning system in BMW vehicles such as the 525i, 530i, M5, and others.

Compatible BMW Models and Common Applications

• BMW 525i, 525xi, 528i, 528i xDrive, 528xi
• BMW 530i, 530xi, 535i, 535i GT, 535i xDrive, 535xi
• BMW 545i, 550i, 550i GT, 550i GT xDrive
• BMW 645Ci, 650Ci, 650i, M5, M6

Common Issues Addressed by This Resistor Block

• Inconsistent blower motor speeds or fan stuck on one speed
• HVAC blower motor not responding to speed control settings
• Intermittent or no airflow from the HVAC system
• Electrical resistance failure causing blower motor malfunction
• Overheating or burning smell from the HVAC blower motor area

Installation Notes and Tips

When installing the Four Seasons 20660 resistor block, ensure the vehicle's ignition is off and the battery is disconnected to prevent electrical shock. Verify the connector orientation matches the rectangular female/female design and confirm the number of terminals aligns with your vehicle’s blower motor wiring. Properly secure the resistor block to avoid vibration damage and test the blower motor speeds after installation to confirm functionality.

Quality Assurance and Warranty

Four Seasons manufactures the 20660 resistor block to meet or exceed OEM standards for durability and performance. This part undergoes rigorous quality control to ensure reliable operation within the HVAC system. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary by region or distributor.