How to add a Thermostat to an RV Vent Fan

Mount the Thermostat Probe & Wires

I cleaned the housing with a bit of mineral spirits and I’m going to use some Hot Melt to hold it in place.

using hot melt from a glue gun to secure the thin probe tube lead wires to the fan body
using hot melt from a glue gun to secure the thin probe tube lead wires to the fan body
thermostat probe and wires ready for hot melt
thermostat probe and wires ready for hot melt

I’d like to thank my awesome wife, Marilyn for her pink silicone mat here so I don’t do any damage to the camper table top.

stripping insulation from 14 gauge automotive wire
stripping insulation from 14 gauge automotive wire

For the wiring I need power to the fan (the Red Line) but, before I get to the fan we need to run through the new thermostat.

crimping wire connectors for the new thermostat
crimping wire connectors for the new thermostat

So, I need a wire that’s going to go around behind the speed selector and connect into that.And it’s going to run to the thermostat there and then I need another one coming out of the thermostat that’s going to tie into the wire that used to sit in there (the red one that’s up above my head here).

I’ve got to some black 14 gauge automotive wire to make up the new leads.I can cut and strip those and crimp on tab connectors. Then I can apply some heat to shrink the plastic tubes.

heating the shrink tube on a crimp connector
heating the shrink tube on a crimp connector
using hot melt glue gun to secure wires to a plastic camper vent housing
using hot melt glue gun to secure wires to a plastic camper vent housing

Looks like I have everything ready to go back into place. I just need to have my screwdriver and screws ready because I have to hold this up at the same time.

Reinstall the RV Vent Fan Housing

connecting 12V DC power wires to a vent fan
connecting 12V DC power wires to a vent fan

I’ll start with my connection to the red fan wire and then connect my to the black power line.

connecting 12V DC power wires to a vent fan
connecting 12V DC power wires to a vent fan

Test the Thermostat

I’ll turn the fan on and then set my thermostat.

testing the new rv vent fan thermostat
testing the new rv vent fan thermostat

And it works!!

(Disclaimer: As an Amazon Associate I earn from qualifying purchases. Thank you for helping to support my content this way. )

testing the new thermostat
testing the new thermostat

That should stay on until it cools down and drops below that temperature. Now I can see if I can get these wires in here without anything getting in the way of anything else.

fitting rv vent ring in opening
fitting rv vent ring in opening

And I can still override and shut it off and leave the temperature the way I like it.

attaching vent fan ring to truck camper ceiling
attaching vent fan ring to truck camper ceiling
RV Camper Fan Vent Thermostat final installation
RV Camper Fan Vent Thermostat final installation

And it’s done! Thermostat added!

Thanks very much for reading!

Kent thanking the viewers
Kent thanking the viewers

Please leave me a comment below with any of your thoughts or suggestions on this video blog post. Thanks very much and we’ll see you next time.

SUBSCRIBE to my YouTube Channel

TOOLS I USE

Shopping Cart
Scroll to Top