What kind of box does a ceiling fan need?
A ceiling fan needs an electrical box and brace that are listed for fan support, because a standard light box is built only to hold a fixture's weight. A moving fan shakes constantly, and an unrated box can loosen over time and let the fan sag or fall.
Look for a stamp inside the box that says it is acceptable for fan support. If your ceiling only has a plain round plastic box, it needs to be replaced before a fan goes up. The box also has to be anchored to a joist or a brace that spans between joists.
Fan weight varies a lot, so compare the rating on the box with the fan's listed weight before anything goes up.
In many Arizona homes the attic sits right above the ceiling, which can make a brace easier to reach, but attic heat and insulation make that space miserable to work in during most of the year.
How do I know if my existing wiring will work for a ceiling fan?
Your existing wiring will work for a ceiling fan if the ceiling box has a hot, neutral and ground conductor in good condition and the circuit is not overloaded. A fan with a light and separate controls can need an extra conductor, which means opening up the wall or ceiling.
Older homes sometimes have brittle insulation on the wires, two-wire cable with no ground, or splices that were never put inside a box. Any of those is a reason to stop and have a licensed electrician look at the circuit.
A quick look in the attic or through the old fixture usually answers this question. Photos of the wiring and the ceiling help a pro tell you what to expect before they arrive, and what parts to bring along.
Newer homes are usually easier, but a fan added where a light used to be still needs the right switch or remote control to run the light and the fan separately.
Is it safe to install a ceiling fan myself?
Installing a ceiling fan yourself is only reasonable when you are comfortable working on a ladder, the box is already fan-rated, and you turn off the breaker and confirm the power is off with a tester. If anything looks unfamiliar, stop and call a licensed electrician.
The wall switch is not a safe way to kill power. Turn off the breaker, then test the wires before you touch them. Never work on the electrical panel itself, and never reuse a circuit that trips, runs warm or smells burnt.
Heat is hard on wiring. Attics in the West Valley get far hotter than the living space below, so insulation on old cable can be stiff, cracked or crumbling, and that is not something to handle without proper training.
Stop immediately if you see scorched insulation, aluminum wiring, or a box that crumbles when touched. Those problems are common in older properties and are not a weekend project.
Why does a ceiling fan wobble after installation?
A ceiling fan usually wobbles after installation because the mounting is loose, the blades are unbalanced or a blade bracket is slightly bent. Check that every screw is snug and the downrod is seated. A wobble that does not go away can mean the box is not secured to the framing.
Arizona dust builds up unevenly on blades, and desert heat can warp cheaper wood-look blades, both of which throw off balance. A balancing kit helps with minor wobble, but it will not fix a loose box.
Also check that the blade screws are tight and that the light kit is not pulling the fan off balance. Small fixes like these cure most wobble, so start there before assuming a bigger problem is hiding above the ceiling.
A fan that shakes the ceiling, clicks, or sways more each week deserves a proper inspection, because a failing mount is the one problem that can bring the fan down.
When should I call an electrician to install a ceiling fan?
Call an electrician to install a ceiling fan when the ceiling has no existing box, the box is not rated for fans, the wiring is old, or you want separate fan and light controls. A licensed electrician can do the whole job cleanly and check the circuit while on site.
Vaulted ceilings, long downrods and heavy fans are better left to someone with the right ladders and mounting hardware. Outdoor patio fans also need wet-rated or damp-rated equipment for the sun and weather.
Ask about the switch while you are at it, since the right control makes a fan far more pleasant to use. Fan and light controls, remotes and wall dimmers all depend on what wiring is already in the box.
A fan install is a short visit for a licensed electrician, and it often includes swapping the old fixture, setting up the switch and testing every speed before leaving. Vortech Air-Conditioning & Electrical is the licensed electrician to call in Glendale, Peoria, Sun City, Sun City West and Surprise, and jobs like this are usually a quick visit.
More questions: Ceiling Fans and Lighting: 12 Most Asked Questions Answered