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When a new blower resistor does not fix the cabin fan

An Outlander owner followed up after replacing the motor, helping separate a suggestion from a reported result.

September 24, 20263 min read
When a new blower resistor does not fix the cabin fan: conceptual system illustration
Concept illustration; not a vehicle-specific assembly or repair procedure.

The cabin blower in a 2010 Mitsubishi Outlander stopped operating. It ran during a separate bench test, so the owner initially suspected the speed-control resistor.

Why the first repair was inconclusive

A replacement resistor appeared to restore operation, but the failure returned soon afterward. The owner then found that disturbing the motor could make it start. That observation prompted an answer recommending investigation of the motor itself.

The reported outcome

On May 4, 2025, Yanick Salzmann reported that replacing the motor resolved the problems and confirmed accepting the answer. This is an owner-reported result, not an independently verified diagnosis. The discussion does not establish which internal motor component failed.

A useful question for the workshop

Ask whether power, ground and motor operation were checked while the fault was present. A successful bench run alone did not settle this intermittent case. Avoid treating a temporary recovery as proof of repair. Do not strike or reach into a powered blower; moving parts and electrical connections require proper isolation before inspection.

Author follow-up · not independently verified

For information, not a diagnosis or repair instruction. A reported result may not apply to your car. Consult the manufacturer's guidance and a qualified technician.

How to use this information

This is an editorial interpretation of a public discussion. Replies, votes and an accepted answer do not prove a diagnosis. An author-reported finding or repair has not been independently verified by AI4Car. Illustrations are conceptual. Read the content limitations.

Credits & reuse

AI-assisted adaptation by AI4Car of the contributions below on Motor Vehicle Maintenance & Repair Stack Exchange. We shortened and reorganized the discussion, paraphrased its text and added educational context. These are reported experiences, not independently verified repairs. The contributors do not endorse AI4Car.

This adapted article text, including AI4Car’s additions, is available under CC BY-SA 4.0. Reuse is permitted under that license with attribution, an indication of changes and ShareAlike. This notice excludes the separate illustration, site design and user comments. The source revision history remains available at Stack Exchange.

Illustration: AI-generated for AI4Car; a generic conceptual view, not a photograph of the reported vehicle or a manufacturer’s diagram. Content and licensing policy.

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When a new blower resistor does not fix the cabin fan | AI4Car