Four Seasons 20485 HVAC Blower Motor Resistor - Rear

Overview of Four Seasons Resistor Block 20485

The Four Seasons Resistor Block 20485 is designed to regulate blower motor speeds in HVAC systems for select GM vehicles. This HVAC blower motor resistor is engineered to provide reliable performance for models such as the Chevrolet Suburban, Cadillac Escalade, and GMC Yukon.

• Connector Gender: Male
• Connector Shape: Other design
• Number of Terminals: 3
• Speed Setting: Fixed # 2
• Type: Switches

About the Four Seasons Resistor Block Product Line

The Resistor Block line by Four Seasons focuses on essential HVAC components that control blower motor speeds. This product line ensures compatibility and durability for various General Motors trucks and SUVs, providing consistent climate control functionality through precise electrical resistance management.

Detailed Product Description

The Four Seasons Resistor Block 20485 is a critical component in the HVAC system, responsible for controlling the blower motor speed at a fixed setting (#2). Featuring a male connector with a unique design and three terminals, this resistor block is built to fit a range of GM vehicles including Chevrolet Blazer, C10 Suburban, and GMC Yukon models. Its switch-type design allows it to regulate current flow effectively, ensuring the blower motor operates at the intended speed for optimal cabin comfort.

Common Applications and Issues Addressed

• Restores blower motor speed control in Chevrolet Suburban and GMC Sierra models
• Resolves HVAC blower motor stuck on one speed or no speed
• Fixes intermittent blower motor operation in Cadillac Escalade
• Eliminates overheating or electrical resistance failures in HVAC systems
• Replaces faulty resistor blocks causing blower motor malfunction

Installation Notes and Tips

• Ensure vehicle compatibility with Chevrolet, Cadillac, or GMC models listed
• Disconnect battery before installation to prevent electrical shorts
• Locate the blower motor resistor block near the HVAC blower motor assembly
• Verify connector orientation matches the male connector design
• Secure all terminals firmly to avoid loose connections

Quality Assurance and Warranty

Four Seasons manufactures the Resistor Block 20485 to meet OEM specifications 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, ensuring dependable operation in your Chevrolet, Cadillac, or GMC vehicle.