Quick Answer: Can You Run A Fan Off A Dimmer Switch?

How does a fan speed switch work?

Fan speed is reduced by placing a capacitor in series with the switched live feed to the fan reduce power.

The capacitor acts as a dropper.

Speed depends on the value of the capacitor in circuit.

The speed control switch selects a different capacitor to give different speeds..

How many amps does a ceiling fan with lights draw?

The majority of modern ceiling fans use less than an amp, averaging between 0.5 and 1 amp, depending on the model and the setting. One amp drawn by a ceiling fan is equivalent to about 120 watts. Low settings use less amperage while higher settings use more.

Do dimmer switches use more electricity?

Does dimming the lights save energy? Light dimmers save energy by reducing the flow of electricity to the bulb and allowing lights to operate with lower power outputs. Since lights under less stress shine longer, dimmers are known to extend the life span of your bulbs, too.

Can I use a regular dimmer switch with just the light on a ceiling?

You can just use a dimmer switch to dim the light, however the speed of the fan will also be “dimmed”. Make sure you use the right dimmer for your lamp, otherwise you can hear noise. … There are special dimmer-switches for ceiling fans, this is a better solution.

What is the difference between fan regulator and dimmer?

The light dimmer circuit or fan regulator circuit (either case, the circuit, and design are the same, the only difference is the output load to be varied, that is, fan or light) is used to control the brightness of the light or the speed of the fan according to our desire.

How do you slow the RPM of an electric motor?

A couple of things you can do:Use gears to change ratio of speed, which is what you’re going to do. … Use a stepper motor, which are commonly used for high-torque, low RPM applications.Find some sort of PWM control circuit to slow it down, although you probably won’t be able to get it down to 5-10RPM.

Is a dimmer switch a potentiometer?

Rheostats and potentiometers are essentially the same thing. Modern household dimmer switches no longer use variable resistance; typically solid-state modulation is used to dim the light. If your switch is truly a potentiometer, I recommend replacing it with a modern dimmer which is vastly more efficient and safer.

How does a box fan speed control work?

When the dial is HIGH, the motor is allowed full line voltage, so it hits its max speed. In the LOW setting a resistor is placed in series with the motor. The resistor reduces the overall voltage going to the fan which slows it down. The fan will consume less power in the LOW setting than in the HIGH setting.

Can you run extractor fan off dimmer lights?

With regard to the OP, you can use a dimmer with a fan as long as you use it on the switched input of a timer fan. The fan takes its power from the permanent live, with the switched input just telling the electronics to activate the timer.

Can I use a dimmer switch to control a motor?

No you can’t use a dimmer switch to control a DC motor. A dimmer uses diac and triac and only works with AC which commutates the triac OFF at the end of every half cycle. … Also keep in mind universal motors don’t speed control very well anyway and need to have a viscous load to enable speed controlling to happen.

Are LED lights good for bathrooms?

Bulb Type. While incandescent bulbs were once the standard, today they are being phased out in favor of LED bulbs, which are far more energy-efficient, last much longer than incandescents, and don’t generate nearly as much heat as incandescent bulbs. That makes LED bulbs the best choice for bathroom lighting.

How do you slow down an electric motor?

Most DC motors can be slowed down by reducing the supply level of power, Volts, lower volts and resulting less amps, will create less electrical field and will slow motor down. For more gradual speed control there are electronic solutions that are called PWM (Pulse Width Modulation) controllers or Mosfet H bridges.

Can a dimmer switch control fan speed?

A dimmer switch can add warmth and comfort to any room that has an overhead fan and/or light fixture. It can control the rate at which the fan blades spin season after season and control the amount of light in the room. There are many factors to consider when installing a dimmer switch to control motor speed.

Can you put a dimmer switch in a bathroom?

In a bathroom all mains voltage circuits should be protected by a residual circuit device (RCD). If you want a bathroom dimmer switch you could install a wireless dimmer switch. This can now be done very easily and is now affordable thanks to the Ener-J kinetic switch.

Can you put a dimmer switch on any light?

Most light fixtures will work with standard dimmer switches, including those with halogen and incandescent lamps. LED fixtures, for instance, may work with standard dimmers, but some may need a specialized dimmer. … Likewise, not all compact fluorescent (CFL) light fixtures can be dimmed.

Can a smart switch control a ceiling fan?

Best Solution: Smart Ceiling Fan Control Using A Smart Switch. … The smart switches install in the wall and replace your existing wall switches. You’ll add the convenience of smart control, and you’ll still be able to control your fan and light manually. This option offers the most opportunity for custom automation.

Are dimmer switches dangerous?

There shouldn’t be any dangers if you use a dimmer that’s designed for LED lights. … Basically, most modern dimmers rapidly modulate between on/off and is safe for long term use in a low state. A side effect however, is that it may generate RF interference or even an audible humming sound.

How does a capacitor control fan speed?

The idea behind a capacitor regulator remains the same, which is to adjust the voltage across the motor of the fan. Now, when you increase the capacitance, the voltage across the capacitor decreases but that across the fan motor increases. Accordingly, the speed of the fan increases.

What kind of dimmer switch do I need for a ceiling fan?

The best option you have for a ceiling fan that is wired to a standard dimmer switch is to change it out for a simple toggle switch. Although this will eliminate your ability to dim the light on the ceiling fan, it will also reduce the risks of damage to the fan or your home.

Can I use a rheostat with a fan?

Use a fan control (dimmer designed specifically for fans) on the power supply to the fan. … Any kind of dimmer–rheostat, variable transformer, solid state control–will reduce the voltage supplied to the motor.