Our 2016 Thor Chateau 31L that we purchased last June has 3 ceiling vents, the one in the bathroom has the small fan in it and the vent in the front of the coach and the one in the bedroom have no fans.I would like to add the Max Air fans to them. How do you get power supply to the fans? Is there already power supply wires there when you remove the vent?Any help is appreciated.Kevin

The RV industry does not run power anywhere they're not going to immediately use it. So my bet is the other vents do not have power going to them. You'll have to run a wire to them. Just have your rv people do it for you.

Maybe someone will chime in that knows about your model. If not remove plastic trim on vent and look around. Maybe flash light and metal yard stick to lift insulation to see if any wires. Adding fan was good idea on ours. Much better in warm weather.

From the inside, remove the plastic flashing ring, probably four screws. Then look around and feel around in the insulation to see if the wiring is there. On my my Nash trailer, Northwood ran power to the two vents they didn't install fans on. It was fairly easy to install the fans.Bill

I added a Maxaire fan in my bathroom vent and merely took the blade off the old little whirr and buzz and installed the maxaire on the roof using the L brackets, NOT screwed into roof, with the control mounted to the inner trim and just hooked to the two wires to the new fan.I would think that there would be 12 volts available at the other two vents if not fish a wire to a nearby light?bumpy

As others suggest there may be wiring you can find in the fibreglass, even if it may be intended for lights as it was in both of my cases.

Adding a Max Air fan | Good Sam Community

13 Replies

Trackrig
Explorer II
Jun 09, 2017
From the inside, remove the plastic flashing ring, probably four screws. Then look around and feel around in the insulation to see if the wiring is there. On my my Nash trailer, Northwood ran power to the two vents they didn't install fans on. It was fairly easy to install the fans.

Bill
path1
Explorer
Jun 09, 2017
Maybe someone will chime in that knows about your model. If not remove plastic trim on vent and look around. Maybe flash light and metal yard stick to lift insulation to see if any wires. Adding fan was good idea on ours. Much better in warm weather.
azdryheat
Explorer
Jun 09, 2017
The RV industry does not run power anywhere they're not going to immediately use it. So my bet is the other vents do not have power going to them. You'll have to run a wire to them. Just have your rv people do it for you.

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Adding a Max Air fan

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