I'm going to assume that the switch that's getting warm is the dimmer. Even when a dimmer is working correctly it gets warm and that's just the electronic parts of it. The face of a dimmer is actually a heat sink to help remove excess heat.
If you swap out the dimmer you will likely find your problem is resolved. Remember to de-energize the circuit by turning off the breaker before working on it.
If in any doubt, consult a qualified electrician.
Be aware that a dimmer for lights does NOT work for fans (though it may sometimes appear to work, you can end up with noise, problems such as the light attached to the fan not working, the dimmer getting overheated, etc). So even though it might seem to work at first, you'll have problems, and it's against code to put the wrong kind of dimmer there. You can purchase a dimmer which is rated for ceiling fans at Home Depot or Lowes, but they are more expensive than light switch dimmers.
Of course, if there is a single on/off switch at the wall which controls the fan and its light, then you might be better off buying a remote control unit to install in the fan - it will allow you to dim the fan and light separately (and safely). Or purchase a new fan with a remote... ceiling fans are cheap enough now that if yours is old enough, it might be a nice time for an update.
Yes, the dimmer switch could be at fault but, be sure the bulbs are okay before you spend anymore money.
could be the the headlight switch, dimmer switch, headlight relay, or a problem with the wiring
Could be a number of things, and you'll probably have to get a digital multimeter to trace the problem. It could be a problem with the headlight switch, the dimmer switch, the wiring, the lamp harness, or the fuse panel.
Replace your dimmer switch and this should fix your problem Or both bulbs could be bad
The dash illumination light (dimmer) switch could be in the off position.
Headlight dimmer switch is defective
Yes it could.
Yes, it could.
Bad dash light, or dimmer fuse. Or a bad dimmer switch itself
The dash light dimmer switch is worn out. You need to replace it.
Bab bulbs? (they are double filamented) Bad dimmer switch? Bad low-beam relay?
it could be your dimmer switch is getting bad