Help your cabin fan respond across its speed settings with the Standard Ignition Blower Motor Resistor RU-497, a replacement 2003-2008 Mazda 6 blower motor resistor for drivers dealing with a fan that won't change speeds. It is listed as a direct-fit replacement for the 2003-2008 Mazda 6 (all engines), with one resistor used per vehicle.
This HVAC blower motor resistor sits in the circuit between the fan-speed control and the blower motor. It varies the resistance, and so the current the motor receives, so the fan can run at its lower speed settings instead of only full speed.
Signs this part may need replacing: the fan runs only on the highest setting, one or more speed settings do nothing, or the blower doesn't run at all. If a failed resistor is the cause, RU-497 replaces it. A worn blower motor, a faulty fan-speed switch, or a damaged wiring connector can produce similar symptoms, so diagnose the circuit before replacing parts. For the resistor's location and removal steps, refer to the vehicle service information.
What does a blower motor resistor do?
It varies the resistance in the blower motor circuit so the HVAC fan can run at its lower speed settings instead of only at full speed.
Which vehicles does Standard Ignition RU-497 fit?
It is listed for the 2003-2008 Mazda 6 with all engines, with one resistor used per vehicle. See the "Vehicles it fits" section for details.
What are signs the blower motor resistor may need replacing?
Common signs include a fan that runs only on the highest setting, speed settings that do nothing, or a blower that doesn't run at all.
Could something other than the resistor cause these symptoms?
Yes. A worn blower motor, a faulty fan-speed switch, or a damaged wiring connector can cause similar problems, so diagnose the circuit before replacing the resistor.
How do I find where the blower motor resistor is mounted?
The resistor is part of the blower motor circuit, and its exact mounting position and access steps are covered in the service information for your vehicle.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
