In this article I’ll show you how I installed a caravan fridge fan mod kit in our Jayco Swan.

This modification is to address a common problem in Jayco camper trailers:

Heat can’t escape from behind the fridge which effectively makes it stop cooling.

[on a hot day you can end up with a fridge running at over 10 deg]

Installing a 12V fan helps to remove the trapped heat so the fridge can work more efficiently.

Let’s get started with the first step:

1. Buy a fridge fan mod kit

I’d been putting off installing a caravan fridge fan mod kit

(even though it ranks 3rd on this list of 35 Most Popular Jayco Camper Trailer Modifications)

I started reading up about how to do it and what parts are needed…

…but then I found this review on Facebook:

Review of Caravan Fridge Fan Kit By 3Dprint CQ - Most Popular Modifications for Jayco Camper Trailer

[now that I’ve installed mine I 100% agree with this]

So I ordered one from 3DprintCQ, and wasn’t disappointed:

What’s included with the Klevakool Caravan Fridge Fan Mod Kit?

What I really liked about buying this kit:

The Klevacool Caravan Fridge Fan Mod Kit comes with absolutely everything that you need to install it

Klevakool Caravan Fridge Fan Kit - Comes With EVERYTHING Needed for Installation

Cable ties. Connectors. Everything.

2. Tools used for the caravan fridge fan mod kit installation

This is everything I needed:

  • Small flat blade screwdriver
  • Wire strippers
  • Cordless drill
  • Scissors
  • Pliers

Doesn’t look like a lot when it’s in a list… but it sure looked like a lot when I had it everywhere!

3. Remove the top vent cover from the side of the van

The fan kit gets installed in the TOP vent:

Remove Top Vent Cover For Caravan Fridge Fan Kit on Jayco Camper Trailer

[this pulls out the hot air that’s risen to the top and draws cooler air up and over the fridge’s cooling fins]

To remove the vent cover it was a case of simply sliding over these little black locking slider clips:

Removing the Vent Cover on a Jayco Swan Camper Trailer

4. Attach the fan casing to the back of the vent cover

Note the ridges, recesses, and bumps on the vent cover…

Rear View of Thetford Fridge Vent Cover Off Jayco Swan Camper Trailer

… good thing the casing of the Klevakool Caravan Fridge Fan Mod Kit is made to fit:

Klevakool Caravan Fridge Fan Mod Kit Fits Perfectly to Jayco Swan Vent Cover

Something I really liked about buying from this supplier was they double-checked to make sure it’d be a perfect fit.

I got mine through their eBay store… and this was the messages I received very quickly:

Ensuring Caravan Fridge Fan Mod Kit Fits Fridge Vent Cover - Message from 3DprintCQ

[that’s pretty awesome customer service]

Confirming Fit for Caravan Fridge Fan Mod Kit Fits Fridge Vent Cover - Message from 3DprintCQ

To fix the casing to the vent cover there was two options for how to do it:

  1. Silicon it, or
  2. Use the (supplied) cable ties

I took the easy option and attached mine using the cable ties:

Securing Klevakool Fridge Fan Mod Kit Using Cable Ties

(I figured that if it looked makeshift I could remove them and silicon it later)

But… here’s how it looked:

Securing Klevakool Fridge Fan Mod Kit Using Cable Ties - Front View

Happy with that. No silicon required.

5. Plug the fans into the PCB controller

This was pretty simple:

You can only plug them in one way

Plugging Fans into CPU Controller in Klevacool Fridge Fan Mod Kit

(then it was just a case of using a few more cable ties to neaten it up)

6. Attach the heat activated thermo switch to the fridge pipes

This is where I thought things got pretty cool (pardon the pun):

The Klevakool Caravan Fridge Fan Mod Kit has a heat activated thermo switch and PCB controller to turn the fans on and off.

Sounds technical…but all I had to worry about was securing the sensor switch with cable ties:

Attaching Heat Activated Thermo Switch to Fridge Pipe

And a close-up:

Attaching Heat Activated Thermo Switch For Fan Mod Kit to Fridge Pipe - Close Up

Simple.

7. Attach the power supply cable

This was a simple case of getting the connector at the other end of the thermo switch cable…

Connector At End of Thermo Switch Cable for Caravan Fridge Fan Mod Kit

…then inserting the power cable and tightening the screws with the small flat blade screwdriver

Connecting Power Cable to Thermo Switch Cable Connector for Caravan Fridge Fan Mod Kit

[noting that the far left wire is the 12V positive]

8. Run the power cable to power supply

There’s a few different options here:

  1. Tap into the fridge’s power supply
  2. Go straight to the battery, or
  3. Plug it into the Setec power supply

I chose to plug it into the Setec

(so that the thermostat wouldn’t be drawing power if we had our Jayco Swan stored with the battery switch off)

So because I was going in that direction I drilled a tiny hole…

Hole For Power Cable for Jayco Swan Fridge Fan Mod Kit

…and ran the cable into the box:

Running Caravan Fridge Fan Mod Kit Power Cable to Setec in Jayco Swan Camper Trailer

Neatened up using some of the remaining cable ties:

Neatening Power Cable for Caravan Fridge Fan Mod Kit to Setec with Cable Ties in Jayco Swan Camper Trailer

Then I neatened things up with the included spiral wrap:

Using Spiral Wrap to Neaten Wiring in Klevakool Caravan Fridge Fan Mod Kit on Jayco Swan Camper Trailer

9. Connect the fuse to the positive cable

Here I cut the power cable to length using the wire strippers.

Then I used the pliers to connect the:

  1. Fuse holder assembly, using the
  2. Connector, then
  3. Spade connector, before
  4. Inserting the fuse

Wiring 12V Fuse For Klevakool Fridge Fan Mod Kit in Jayco Swan Camper Trailer

For the negative cable it was a case of simply crimping on a spade connector with the pliers

[all of this was included in the kit]

10. Plug it in and test to see if everything works

The final step was to:

  1. Make sure the battery switch was off
  2. Plug the spade connectors into the spare outlets in the Setec, then
  3. Turn the battery switch back on

Outside on the PCB controller I switched the switch from ‘AUTO’ to ‘TEST

Testing the Klevakool Caravan Fridge Fan Mod Kit - Changing AUTO to TEST

Success:

Testing the Klevakool Caravan Fridge Fan Mod Kit - Changing AUTO to TEST - Blue Light

But the real test?

I put the vent back on then turned on the fridge…

Testing the Klevakool Caravan Fridge Fan Mod Kit on Jayco Swan Camper Trailer - Fridge Turned On

…about 20 minutes later this happened:

Testing the Klevakool Caravan Fridge Fan Mod Kit on Jayco Swan Camper Trailer

And, the fan kit turned itself off about 5 minutes after I turned off the fridge.

Summary: Installing a Klevakool Caravan Fridge Fan Mod Kit in a Jayco Swan camper trailer

Installing a caravan fridge fan mod kit is near the top of this list of the 35 Most Popular Jayco Camper Trailer Modifications

Knowing what I know now, I’d still recommend buying a Klevakool Caravan Fridge Fan Mod Kit from 3DprintCQ:

Simple to install, fits like a glove, and every little thing you need for installation is included.

Comment below if you have any other questions about the installation process?