No, you should never spray standard WD-40 or similar multi-use water-displacing aerosols directly into a ceiling fan motor to lubricate squeaking or stuck bearings. While WD-40 temporarily loosens stuck parts, it is a solvent rather than a true lubricant; it will quickly strip away factory grease, dry out internal components, attract dust and lint into the motor housing, and create a severe fire hazard. You can troubleshoot motor noise safely by shutting off power before inspection. You can verify that your corrective action is successful when using proper non-drip SAE 20 non-detergent electric motor oil drops specifically designed for sealed sleeve bearings (if your fan model permits lubrication) eliminates squeaks safely without damaging internal electrical windings.
1 votes
Marked as accepted