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Why a spark is produced in the switch of a fan when it is switched off?
Wiki User
∙ 10y ago
when inductive load is switched off then current decreases as a result emf induced in the inductor or as whole of the circuit. There is air between switch and circuit wire. Emf tends to jump from higher pd to lower pd so air become ionised and spark is prouced
Wiki User
∙ 12y ago
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What would cause a ceiling fan's lights and fan to stop working while the small LED on the wall switch still lights when it is switched on?
That led is only showing that there is power to the switch and/or the light and fan fixture. You would have to check the power at the fixture to determine if it is actually in the switched feed or the fan/light assembly.
How do you add a light switch to a ceiling fan that doesnt have a pull switch. i installed a light kit but theres no way to turn off the light. do i drill a hole and add a switch to existing wiring?
Some brand fans have a remote control kit that installs in the fan housing. Also if you have access you can run a separate switched voltage to the fan. In this case you would have to put a second switch in the same box that controls fan, unless it is a switch with speed control that came with fan. In this case you would have to install a new box (Old Work Switch Box from Home Depot or Lowes for example) and run voltage to the box, install a switch and run wire to fan and connect to light. One other possibility is to check the ceiling box and see if there is a spare red wire. If so you could use this to switch power to the light separately from the fan. Again it depends on the switch configuration and supply voltage feed.
Can I get my ceiling fan to turn on and off by using the light switch?
Yes. Simply turn on the ceiling fan while the light switch is in the "on" position. Adjust the spinning to the level of your choice. Now the fan will turn on and off when you switch the light on and off.
The wall switch is off but the ceiling fan is still getting power why?
There is a fault with your electrics to the fan/switch. Get in an electrician to fix it. ------------------------------------------------------------ The switch is bad. Turn off the power to the fan in the main panel, turn off the breaker that powers the fan. Usually if you remove the bottom cover of the fan you can see the switch. You can remove the switch and take it to a electrical supply store and they will match the switch. The wires should all be color coded so you should be able to put in back in and hook it up. Black to black, white to white.
In the US where do the blue red green and white wires on a fan go to when the ceiling has red black bare copper and white wires?
Black to Black - Black from the ceiling is a hot wire and should be switched Red to Blue - Red wire is another hot wire and should also be switched White to White - White from the ceiling is the neutral and should not be switched. Your wall should have two switches, one will control the red wire, one will control the black wire. If you wire your fan as above, one switch will turn the fan on, the other will turn the light of the fan on.
What would cause a ceiling fan's lights and fan to stop working while the small LED on the wall switch still lights when it is switched on?
That led is only showing that there is power to the switch and/or the light and fan fixture. You would have to check the power at the fixture to determine if it is actually in the switched feed or the fan/light assembly.
What is wrong when a Neon cooling fan cycles on and off repeatedly even when cold?
Is the air con switched on? If not you are looking at faulty fan switch or wiring.
Why does your heater fan keep running after you have switched off and pulled the key unless you physically turn the fan switch to off?
so that it cools the engine down
Why does your bathroom or kitchen extractor fan run when the switch is turned off?
If the fan does not go off after 2 hours from switching it off and you know that the fan unit has a timer, then it is likely that the fan unit has either recently become faulty (if you know that it always went off before) or, if it is a new fan, that it has been wired up incorrectly. A fan unit which has a timer in it must have two separate "hot" wires feeding it:A "non-switched hot", which is permanently fed with power from the breaker on the main supply panel. After the fan has been switched on using the "switched hot" wire described below, this "non-switched hot" wire keeps the fan running for the length of time the timer has been set for.A "switched hot" wire which should be connected to the on/off switch that controls the fan.Depending on the actual design of the control circuitry inside the fan unit, if the above two "hots" have been connected to the fan unit the wrong way round, the result can be that the fan will "stay on and running" all the time, regardless of the position of the on/off switch for its circuit.The solution is to switch off all the power at the main breaker panel and, after you have checked that no wires are still "hot" or "live", re-wire the "hots" on the fan unit the other way round:You must ensure that the "switched hot" connection on the fan unit is no longer connected to the permanent hot feed wire coming from the breaker on the main supply panel. (It should now be connected to the switched hot wire from on/off switch that controls the fan.)The "non-switched hot" connection on the fan unit isconnected to the permanent hot feed wire from the breaker on the main supply panel. (Instead of to the switched hot wire from the on/off switch that controls the fan).More details:If the fan stays on after it has been switched off there is probably a timer inside the fan unit which will turn the fan off after a set time. If the fan does not go off after 2 hours from switching it off then either the fan unit has no timer but has been wired up incorrectly - so that it is not controlled by the on/off switch (see above) or the timer may have been set to stay on continuously.Sometimes a fan may come on when the switch for a light in the same room has been turned on but, if the fan has a timer, that timer will keep the fan running even after the light has been switched off.Sometimes a fan may have its own on/off switch, separate to another switch controlling a light in the same room. In that situation you might switch off both the light and the fan but, if the fan has a timer, the timer will still keep the fan running even after the light has been switched off.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
Where is the heated rear window switch on a Vauxhall Astra?
Pull out The heater fan switch/knob also interier light can be switched on by pulling out the switch / knob for the lights. Ronnie Lisburn Co Antrim
Fuse keeps blowing when heater is switched on y reg ford focus?
Sounds like either the fan speed switch or the fan motor itself might be bad.
How do you wire a manual fan override switch for a 1996 3.8 camaro RS?
Disconnect original wiring harness Supply a fused switched ignition sensitive Hot wire to fan motor
The blades of a fan keep on moving for sometime even after the fan is switched off?
It is most likely the momentum that carries the blades spinning, when you switch the fan off the energy doesn't completely disappear , it exists and still pushes the blades round.
How do you change the fan switch on a 1983 Honda Shadow?
The fan does not have a switch - the thermostat switch runs the fan.
How do you Wire a light from a switched outlet?
See: "How can you re-wire a wall switch that controls an outlet to control a ceiling fan?" (Follow the link below.) The procedure is the same whether the new device is a light fixture or a ceiling fan.
Why does your 1986 Landcruiser not start after the motor is warm?
Is it petrol or diesel? if it is petrol then the spark plugs may need replacing or the valves are not operating properly at higher temperatures. If in doubt get it checked by a qualified mechanic. Another possibility is the anti-vaporlock fan is not working. This is a fan on the left side of the engine compartment in FJ60 and FJ62 gasoline models. This can be a fan failure, or the thermal switch. If you don't hear the fan running when the engine is switched off, this is the most likely cause. Opening the hood to allow cooling will get you by.
How to connect electricity wire to three wired out ceiling fan?
Some ceiling fans have a black, white and sometimes blue wire. The blue wire in this case is so you can switch a light separate from fan. If your fan doesn't have a light just put a wirenut on extra wire and ignore it. If you do have a light and want it switched you'll need an extra wire run to fan, and switch that wire for light.
