Get every fan speed back under command with the Standard Ignition HVAC Blower Motor Resistor RU-769. It installs as a direct-fit replacement in the front HVAC system of the 1993-1995 Chevrolet Astro [All] and 1993-1995 GMC Safari [All], controlling the current fed to the blower motor so the heater and A/C fan can run across its selectable speed settings.
A blower motor resistor provides stepped resistance values for the lower fan speeds; when it fails, the blower often runs only on the highest setting or drops out on some speeds. If a failed resistor is the cause, this part restores variable-speed control to the HVAC blower.
- Premium copper connectors: uses premium copper electrical connectors for more precise resistance values, supporting resistor performance and longer part life.
- Four blade terminals: four male blade-style terminals with screw attachment; no connector supplied.
- 3-5 speed, 12V: built for 3-5 speed HVAC systems running at 12 volts.
- GM-focused: specifically designed for GM applications and tested for correct performance.
Wiring harness, mounting bracket, and mounting hardware are not included. Country of origin: Taiwan.
Interchange: RU1458 · JA1729 · BR669 · 52462691 · 52462693 · Manufacturer part number RU-769 (also RU769)
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this blower motor resistor do?
It controls the current fed to the HVAC blower motor to set the lower fan speeds. If it fails, the fan may only run on high or drop out on some speeds; this replaces the resistor if it is the cause.
Which vehicles does RU-769 fit?
It's a direct-fit replacement for the 1993-1995 Chevrolet Astro [All] and 1993-1995 GMC Safari [All]. Check the Buyer's Guide tab to confirm your exact vehicle.
Does it include a wiring harness or mounting hardware?
No. The wiring harness, connector, mounting bracket, and mounting hardware are not included with this resistor.
How many terminals and speeds does it support?
It has four male blade-style terminals with screw attachment and is built for 3-5 speed HVAC systems operating at 12 volts.
What other part numbers does it replace?
Interchange numbers: RU1458, JA1729, BR669, 52462691, and 52462693. The manufacturer part number is RU-769.
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