Behr 70815847NA HVAC Blower Motor Resistor Regulator

The Behr 70815847NA is an HVAC blower motor resistor (also known as a blower motor regulator or AC final stage unit) designed to control the speed of your vehicle's climate control blower motor. This electronic module regulates the electrical current flowing from the fan switch to the blower motor, allowing you to adjust fan speeds for optimal cabin comfort.

Key Features:

• OE-quality construction from Mahle Behr, a leading original equipment manufacturer
• Features 39 heatsink pins for efficient heat dissipation and reliable performance
• Restores proper operation when blower motor only works on one speed or fails to operate
• Direct replacement for failed resistor/regulator units
• Manufactured to exacting OE specifications for fit, form, and function

Common Failure Symptoms: If your blower motor only operates at one speed (usually high speed) or doesn't work at all, the blower motor resistor is often the culprit rather than the motor itself. This is a straightforward repair that restores full functionality to your vehicle's heating and air conditioning system.

Cross Reference Numbers: ABR55000S, 64116923204, 64116920365, 351321511, JGO000021