After all the help I have received here on this forum, I thought I would give back a little:
Heng's Industries Vortex II 5 speed Fan Upgrade Kit Install
I am in no way associated with the ebay seller, or the company that makes this fan. I am not being paid to say good things about this fan, I just wanted to perhaps help others who may want to do an easy mod to make their rig better!
The bathroom fan in our Puma 27FQ was LOUD, rattled like crazy and didn't move much air. Time for an upgrade! I found this 5 speed, two-direction Vortex fan on ebay.
The install is fairly quick (15-45 minutes depending on issues), can be done entirely from inside the trailer, and only required a phillips screw driver and a pair of wire cutters & wire strippers.
Opening the box, included the fan, the instructions, and a bag of parts:
The first thing to do was to remove the plastic shroud that surrounds the fan unit from inside. In my trailer I removed 4 phillips screws. Note: there was all kinds of construction sawdust and other mess that fell when I removed this! After removal, the vent looked like this:
Now to open the bag of parts and get serious:
I then removed the plastic nut on the fan switch, and uninstalled the crank handle by removing one phillips screw. The screen assembly itself was held on with two phillips screws. These screws are way up in a long hole about 2" deep on each side of the screen. After removing the screen it looks like this: