Because turning the switch on creates a path that draws more power than the breaker allows. This could be due to having too many lights loading the circuit, or it could be due to a short circuit in the wiring after the switch. In either case, you should have a professional electrician look at the problem.

Can you put exhaust fan and light on same switch?

You can run your bathroom fan on the same switch as your lights. It solves other problems, so it’s not a bad idea even if you have two switches. This kind of arrangement isn’t a bad idea anyway. It’s safe to assume if someone is in the bathroom, the light is on.

Can a fan and light be wired to one switch?

Most new ceiling fans can be wired to either a single switch or a double switch. With single-switch wiring, power to the fan is controlled by a standard single-pole wall switch, like a regular light switch.

How do you wire a bathroom exhaust fan with light?

Quote from Youtube video: Box this is hot only when the switch is on and then we have the blue wire which goes to the light. And we have the black wire that goes to the fan. So we just flip up all three of the connectors.

Can you replace a bathroom light with exhaust fan?

Replacing an existing bathroom light with a light and fan kit to be operated by separate switches would require running new wiring to the switch box, but a vent and light kit operating off the same single switch will not require additional wiring or a change of the switch.

What do you do if your bathroom doesn’t have an exhaust fan?

If your bathroom doesn’t have a fan, take advantage of the door and window(s) to let out steam. Whenever weather permits, open the window during your shower or bath and leave the window open for at least 15 minutes after you exit.