Most dimmer switches are nothing more than a large in-line variable resistor. Turning the switch down only increases the resistance on the line and there by reduces the volage to the load, which in this case is the light. If the RESISTOR is turned down all the way, even though the light may appear to be completely off, there may still be a small amount of voltage at the load (light) resulting in a resistor that is turning whatever is left into heat. If this is the type of dimmer, check the switch to see if there is an "off" position that completely cuts the circuit. The other type of dimmer switch is far more complex and is used for motors, florescent ligting and other equipment that will not function on reduced voltage. These types of dimmers use a concept called "pulse width modultion" to supply full voltage to a device but the voltage is sent in pulses that correspond to the amount of current used to provide the necessary intensity of the load. If it's a florescent light, the pulse width would be adjusted to provide the light that you want. If it's a motor, the pulse width would control the speed of the motor. These types of dimmers may use a small current to continue operation of the switch even though nothing is really on. In my opinion, this type of dimmer is not designed well, but then, I didn't have to build it. So in general, the answer is "No, a dimmer switch shouldn't be warm if it has been off for a long time." After the switch has been turned off it should cool to room temp after a while.
On many cars, there is a dimmer switch which controls the instrument panel lights. If this switch is turned all the way, it may cause the overhead light to come on. The overhead light will then stay on even after doors have all been closed. Find the dimmer switch, close the doors, wait 30 seconds, and then turn the dimmer switch.
Yes it is still on and using as much power as if it was on full
The door switch can be corroded or defective. Can also be a Short in the wiring to the switch. Also on some vehicles, you can turn on the dome light with the dimmer for the instrument lights. This dimmer, if turned all the way to one side will bypass the door switch and the dome light will stay on all the time.The door switch can be corroded or defective. Can also be a Short in the wiring to the switch. Also on some vehicles, you can turn on the dome light with the dimmer for the instrument lights. This dimmer, if turned all the way to one side will bypass the door switch and the dome light will stay on all the time.
Be sure the dash illumination dimmer switch is not turned off.
Could be bad bulbs (double filamented) or bad dimmer switch
The dash light dimmer switch is turned off or broken.
check your headlight switch or dash dimmer switch to be sure you do not have them turned on.
Be sure the dash light dimmer switch is not turned off. Check the fuses.
If I understand you correctly, the dimmer dial near the headlight switch is turned down; simply turn the dimmer dial until it clicks and the lights should turn on.
The instruments light dim for night driving when the headlights are turned on. Check to insure that your dash dimmer switch is on high. If it is, then you have a problem with either the dimmer switch or the wiring.
check your interer dimmer switch is it in the on position? dimmer switch is not turned on ... the lights stay on while the car is in use as well as when the car is turned off. they stay on exactally as long as the radio does if the car is turned off and you sit inside
I am not an expert,but i had similar problem on wifes nova. it turned out to be the dimmer switch,I would check it to make sure you are getting power in and out of it(with a test light)a dimmer switch is not that exspensive. it should be located on the steering column if you dim your lights from the turn signal switch. Hope this will help you out.