When a ceiling fan suddenly stops spinning while turned on, the abrupt failure typically stems from an electrical disconnection, a thermal overload, or an internal hardware breakdown. Common causes include a loose wire nut connection inside the upper canopy box shaking loose from vibration, a failed motor run capacitor, a blown internal thermal fuse inside the motor housing due to overheating, or a tripped circuit breaker. You can troubleshoot fan failures safely by turning off power at the breaker before inspecting components. You can verify that your corrective action is successful when securing loose canopy wires, replacing a failed capacitor, or resetting a tripped breaker restores smooth blade rotation and operational control to the ceiling fan.
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