1983 excella bathroom vent fan

[Okiegent]

Looking for thoughts why a vent fan that was running stopped. I am new to airstream. We just purchased this one. The fan is one that you push up on Handel then turn on at switch on wall. Blades are not binding and turn freely. It worked at one time.

[Cantrell]

You've got to determine if you are getting power to the fan motor.
First, make sure all fuses are good (the other things on that circuit would not be working if a fuse had popped).
Then check the leads coming into the fan motor for 12V (with the switch on).
If nothing, then pull the switch from the wall, make sure the connections are good (might have vibrated loose over the last 26 years) and then check to see that it is getting power into the switch.
If you are getting power all the way to the motor but the motor isn't running then it sounds like a bad motor.
Good luck,

[Okiegent]

Thanks Bill will do. I assumed that I was getting power. When I turned the switch on the lights would dim just a bit. Did not keep it on long though. Like I say it worked a first. I hate to have to pull it from the roof if not needed. Is this the only way to get the motor out to check. I will check the voltage though. Now when you say check the leads for twelve volt are you talking running off batterey? I have my shore line plugged in. Do these fans run off 120 or the 12v batterey connection? I will learn about this I got a feeling hahah.

Tom C.

[Inland RV Center, In]

Originally Posted by Okiegent

Thanks Bill will do. I assumed that I was getting power. When I turned the switch on the lights would dim just a bit. Did not keep it on long though. Like I say it worked a first. I hate to have to pull it from the roof if not needed. Is this the only way to get the motor out to check. I will check the voltage though. Now when you say check the leads for twelve volt are you talking running off batterey? I have my shore line plugged in. Do these fans run off 120 or the 12v batterey connection? I will learn about this I got a feeling hahah.

Tom C.

The bath exhaust fan runs on 12 volts DC.

They can and do fail in time. Replacement motors are available from dealers.

Both large (2+inches) and small (1+inch) diameter motors were used, so note that information to the dealer.

If the motor is bad, check the cap as well. If that's also bad, you would be better off replacing the complete vent.

Andy

[Cantrell]

On the one in ours, which may or may not be the same, there is a plastic screen held in place by two screws (inside the trailer on the ceiling) that will allow you access to the motor and 12v lines running into the motor. Check for 12V power at that point with a small voltmeter.
If your lights are dimmming when you try to run the fan then it sounds like current is getting to the fan but the motor might be bad.