No, a ceiling fan motor will generally not run or spin properly if its internal motor run capacitor has completely failed. While electrical power will still reach the motor windings—causing a noticeable humming or buzzing sound—the capacitor is strictly required to create the phase shift that generates rotational torque in single-phase AC induction motors. Without a healthy capacitor, the magnetic field cannot spin the rotor. You can troubleshoot capacitor failure safely by isolating power at the circuit breaker before opening the housing. You can verify that your corrective action is successful when replacing the compromised capacitor with a new unit matching the exact microfarad rating allows the ceiling fan blades to spin freely and powerfully across all speeds.
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