Our Dometic frig is the two door stile. It is in a slide out so it has a outside vent high and low. Inside the exterior wall and behind the frig at mid heigth are two cooling fans that come on when the computer tells them to. I made it to where the two fans run all the time. We stay in some really hot weather at times so I am wondering if it would help if I added a small cooling fan behind the top vent on a switch that I can turn on when it starts getting hot?

are you having temperature issues in the frig?

Our Norcold 6 cu ft reefer now has 3 computer fans that I installed at the top of the stack.Running off the solar panel output with a separate switch.Runs good and pulls the heat up and out and is quiet.

You should look at this venting information. Refer vents on slideouts don't work as well as on non-slideouts. I would check to insure there is no void on top of the refer. They rig's manufacturer should have use some metal flashing type material to route the air coming up through the coils to ward the upper vent outlet. They should have installed blocking material so the air from the bottom vent is routed through the coils with only a small amount of clearance toward the exterior wall of the rig.Venting

.Installing optional (extra) cooling for camping within extreme hot temps is a good idea. Especially since most RVs are factory built for "average" temp ranges. If extreme hot temps, installing "more / extra" air flow cooling for the external fridge is a great idea.If wondering, I installed a 12V computer fan with manual off/on switch (with inline fuse) on my TT as well. For it, I simply plastic pull-tied the compuer an to its rear cooling coil. On extreme hot temp days, I turn this 12V fan ON. One can also install a 12V fan within its roof top venting lid (at top of its vertical flu) on a 12V manual switch as well. Note: I have it on manual off/on switch to turn off at night - to allow the over sensitive ears on my wife to sleep at night. LOL!!! Another idea is to buy "store bought" and simply bolt it on. I hear store bought fan systems (12V rear cooling &/or solar power for roof top) work great as well. For more detals, surf: - Click Here - IMO, additonal cooling (on its rear coils and vertical flu) should be factory build. After this simply DIY mod, my RV's fridge now runs less often during extreme hot temps - because it's now getting extra cooling during those extreme hot days. For my TT, this MOD was well worth it....

yes you can add the vent fan yes it will helpwhile you have the vent cover off,check for the flashing/block that will force the air out the vent instead of letting it be trapped above the fridge

Adding cooling fan to refrigerator? | Good Sam Community

efiguero
Explorer
Jul 30, 2013
bigcitypopo wrote:
Here is the link to my thread...

clicky right hee-a

bigcitypopo awesome, just what I was looking for. Thanks, I will check it out.
bigcitypopo
Explorer
Jul 30, 2013
Here is the link to my thread...

clicky right hee-a
BarneyS
Explorer III
Jul 30, 2013
You want the air to flow from the bottom to the top. I have a fan mounted in the bottom that blows upwards and "sucks it in" and blows the air over the coils. If I were to mount additional fans, I would put them on the top and "suck it out".:W

My fan has a temperature controlled thermostat switch mounted on the tube of the fridge and turns the fan on when the temp in the compartment gets too high. Don't remember just what that temp is.
Fridge fan
Barney
efiguero
Explorer
Jul 30, 2013
Ok, so I'm thinking of tackling this mod, so if I'm understanding the mod you can have Fans at the top and at the bottom where the main removable vent is at. So I'm assuming the fans at the top are sucking the air out the vent at the top correct? The vent at the bottom would be sucking air in or would it be sucking air out? I guess I'm just need to know which direction I need to be installing the fans, do I want them to be blowing air in or out? Has anyone done a write up on this? My particular Dometic Fridge does not seem to have any stock fans, I know for sure at the bottom main vent/hatch, I have not checked at the top vent yet but don't think it does as it's the original fridge from 98. When wiring, I'd be tapping into the power from the backside of the fridge, would I need to add a fuse for them in addition to the switch or could I just add a switch?
Road-Trekker
Explorer
Jul 03, 2013
I upgraded the stock fans on our Dometic fridge and also added a bypass switch for the fans.

More pictures here: Clicky here.
bigcitypopo
Explorer
Jul 01, 2013
I,m just getting ready to install. I have to pull the fridge... :-/
efiguero
Explorer
Jul 01, 2013
bigcitypopo wrote:
I just ordered the Snyders RV kit. I will post pics of install.

How did this work out?
Raften
Explorer
Apr 05, 2013
My situation is different but same idea. I think I'll make a vent plate that will mount two fans right at the top. It can be removed quickly if it does not work out. Just the air getting thru the still fans in the winter should be enough. This summer if I can get out I intend to get better cooling.
Cummins12V98
Explorer III
Apr 04, 2013
Raften wrote:
So a question about putting a fan on top of the stack. Close off the opening except for a hole the size of the fan or fans?? I have one fan mounted up there and that only fills half or less of the stack opening. I have always felt it could pull better than it does.

Look at the pic I have a few posts up on this page. It is looking down from the top vent hole and I have since filled the hole between the two fans. With the outside temp right now near 90 the frig set on 4 is at 36 degrees. This is with the small fan I added at the top running 24/7 and the two factory fans only coming on occasionally.

Close off any gaps around the fans and it will help pull the air thru more efficiently.
Raften
Explorer
Apr 04, 2013
So a question about putting a fan on top of the stack. Close off the opening except for a hole the size of the fan or fans?? I have one fan mounted up there and that only fills half or less of the stack opening. I have always felt it could pull better than it does.