Four Seasons 20176 HVAC Blower Motor Resistor

Overview of Four Seasons Resistor Block 20176

The Four Seasons Resistor Block 20176 is designed to restore proper blower motor function in select Mazda vehicles. This HVAC blower motor resistor ensures consistent fan speed control, specifically engineered for models like the Mazda 323, MX-3, Protege, and RX-7.

• Connector Gender: Female / female / male
• Connector Shape: Other design
• Number of Terminals: 4 / 2 / 1
• Speed: Fixed # 3
• Terminal Type: Spade / wire lead
• Meets or exceeds OEM specifications

About the Four Seasons Resistor Block Product Line

The Resistor Block line by Four Seasons focuses on reliable HVAC components that maintain or improve the blower motor's performance. This resistor block is part of that line, providing a durable and precise replacement that matches OEM standards for electrical resistance and terminal configuration, ensuring compatibility and longevity in your Mazda's HVAC system.

Detailed Product Description

The Four Seasons 20176 resistor block is a critical component in the HVAC system, controlling the blower motor speed by regulating electrical current. Featuring a unique connector design with female and male terminals and a combination of spade and wire lead terminal types, it supports multiple terminal configurations (4, 2, and 1 terminals) to fit specific blower motor circuits. The fixed #3 speed setting allows for consistent airflow control, essential for maintaining cabin comfort in Mazda 323, MX-3, Protege, and RX-7 models.

Common Issues Addressed by This Resistor Block

• Blower motor stuck on one speed or not changing speeds
• Intermittent or no airflow from the HVAC system
• Overheating or failure of the blower motor resistor
• Electrical resistance issues causing blower motor malfunction
• HVAC blower motor not responding to control switch inputs

Installation Notes and Tips

• Ensure the vehicle is turned off and the battery is disconnected before installation
• Verify connector gender and terminal types match your vehicle’s existing wiring harness
• Handle terminals carefully to avoid bending or damage
• Consult the vehicle’s service manual for resistor block location and removal instructions
• Test blower motor operation after installation to confirm proper function

Quality Assurance and Warranty

This Four Seasons resistor block meets or exceeds OEM specifications, ensuring reliable performance and durability. While specific warranty details may vary, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.