FAN MOTOR FAIL
Kenmore · 580.74124 Window Air Conditioner 10,000 BTU
Compressor runs but no air blowing, or weak airflow. Fan motor has failed or capacitor is bad. Replace fan motor and/or run capacitor. On window units, a single motor usually drives both indoor and outdoor fans.
Error FAN MOTOR FAIL on the Kenmore 580.74124 Window Air Conditioner 10,000 BTU means: Fan Motor Failure. The top-ranked community fix is “Replace Fan Motor and Run Capacitor” (medium difficulty, ~90 min, DIY cost: $10-$25). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · air conditioner
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many air conditioner repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $150-$250.
The Kenmore 580.74124 Window Air Conditioner 10,000 BTU has 8 other known error codes:
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