Four Seasons 20676 HVAC Blower Motor Resistor

Overview of Four Seasons Resistor Block 20676

The Four Seasons Resistor Block 20676 is designed to regulate the blower motor speed in select Mercedes-Benz models. This HVAC blower motor resistor ensures variable speed control for optimal climate comfort in vehicles such as the CLK55 AMG and E320.

• Connector Gender: Male
• Connector Shape: Rectangular
• Number of Terminals: 3 / 1
• Speed Type: Variable
• Terminal Gender: Male
• Part Type: HVAC Blower Motor Resistor

Detailed Product Description

This resistor block from Four Seasons is engineered to provide reliable speed regulation for the HVAC blower motor system. Featuring a rectangular male connector with three terminals, it supports variable speed control, allowing precise adjustment of airflow inside the vehicle cabin. The part number 20676 corresponds specifically to this resistor block, which is compatible with a range of Mercedes-Benz models including the CLK55 AMG, E320, E55 AMG, and E500 among others.

The Four Seasons Resistor Block product line focuses on delivering components that maintain proper electrical resistance for blower motors, ensuring consistent HVAC performance. This resistor block is a critical component in the blower motor circuit, enabling the switching of different fan speeds by varying electrical resistance.

Common Applications and Issues Addressed

• Restores variable blower motor speed control in Mercedes-Benz CLK55 AMG and E320 models
• Resolves blower motor stuck on one speed or not working at all
• Fixes intermittent blower motor operation or inconsistent airflow
• Eliminates overheating or electrical resistance failures in the blower motor circuit
• Improves HVAC system reliability and passenger comfort

Installation Notes and Tips

• Ensure vehicle ignition is off before installation
• Locate the blower motor resistor block behind the glove compartment or under the dashboard
• Disconnect the electrical connector carefully to avoid damage to the male rectangular terminals
• Replace the resistor block with part number 20676, matching connector gender and terminal count
• Test blower motor speeds after installation to confirm proper operation

Quality Assurance and Warranty

Four Seasons manufactures the Resistor Block 20676 to meet or exceed OEM specifications for durability and performance. This part undergoes rigorous quality control to ensure reliable operation in Mercedes-Benz vehicles. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.