The answer to 'ceiling fan dimming lights' is that the most common causes are a faulty dimmer switch, loose wiring, or an incompatible dimmer and ceiling fan combination. Symptoms include the lights flickering, dimming unevenly, or not dimming at all. Solutions may involve replacing the dimmer switch, tightening connections, or installing a compatible dimmer designed for ceiling fans.
If you're comfortable working with electrical systems, you may be able to troubleshoot and fix the issue yourself. However, if you're unsure or the problem persists, it's best to call a licensed electrician to diagnose and resolve the issue safely.