Replacement Auto Parts

Blower Motor Resistors and AC Resistor Replacement Parts

A blower motor resistor controls HVAC blower speed inside the heating and air-conditioning system. When it fails, the fan may only work on high, stop working at lower speeds, or behave intermittently. UGGAD.COM helps shoppers compare blower motor resistors, AC fan resistors, OEM part number references, and vehicle fitment notes.

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Blower Motor Resistors and AC Resistor Replacement Parts (4 Products)

Blower Motor Resistor and AC Resistor Guide

A bad resistor often points to extra load from an aging blower motor, so inspect the blower motor connector and cabin air filter before replacing the resistor. Match the replacement by vehicle fitment, connector shape, terminal count, mounting style, and OEM part number reference. Burned terminals, melted plugs, or repeat resistor failure usually mean the blower motor is drawing too much current.

Common Reasons to Replace This Part

HVAC fan only works on high speed
No air from vents at low fan speeds
Melted blower motor resistor connector
Intermittent AC fan resistor operation

Frequently Asked Questions

What does a blower motor resistor do?
It controls HVAC blower speed by changing electrical resistance in the fan circuit. A failed resistor often leaves the fan working only on high speed or not at some speeds.
Is an AC resistor the same as a blower motor resistor?
Many shoppers use AC resistor to describe the blower motor resistor or HVAC fan resistor. Match the part by fitment, connector, and OEM reference before ordering.
Can I search by part number such as 1J0819022A?
Yes. Part numbers can help narrow the search, but the final match should still be checked against make, model, year, connector, and product notes.