Lubricating a noisy ceiling fan is only possible if your specific fan model is an older design featuring an oil port on the motor housing. First, shut off power at the circuit breaker and lower the fan if necessary to access the top of the motor. Second, locate the oil hole plug, remove it, and squeeze two to three drops of non-detergent SAE 20 electric motor oil inside. Third, let the oil soak into the bearings for several minutes before replacing the plug. You can troubleshoot motor noise safely by isolating power first. You can verify that your corrective action is successful when restoring power and turning the fan on confirms that the squeaking or grinding noise has stopped and the motor spins quietly.
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