Originally Posted by hotfishtacos
I like the Fridge-Fix design but it's a little expensive for me. I thought I would try to come up with something on my own so I found 2 high performance very quiet cooling fans with sealed bearings I had laying around and am going to mount these in my refrigerator and try them. I'll take pics when done and report on how it went.
Well, to save some money and also address the opportunity to move air across the cooling fins in the refrigerator and improve overall cooling performance I came up with a solution and it is now operational.
1. Installed two 1/4 zinc plated steel cross bars in front of the cooling fins
2. Removed the door light assembly and tapped into the 12vdc supply and added a small microswitch and a single supply line for the fans.
3. Installed the fans at a slight angle blowing directly into the cooling fins. They are now attached with rubber bands but will eventually be permanently mounted in place.
4. I ordered grill covers for the fans so I won't complete the installation until they are received next week.
I am very pleased with how this system turned out:
-120mm fans are large and blow air across all of the cooling fins
-Very high quality fans with hydraulic, sealed bearings for long life
-Very low current draw; .1 amps total (measured; both fans running)
-Very quiet...I can barely hear the fans running with the refrigerator open
-Fans moved a very large volume of air; 38cfm each, 76cfm total
-The system is mounted vertically in the back of the refrigerator in front of the cooling fins so that no food storage space is used by the system
This is where I tapped into the 12vdc supply and installed a microswitch to turn the fans on or off. Notice the access hole I added to activate the switch.
Here you can see the support rods for the fans. The fans will eventually be attached to the rods with heavy tie wraps.
This shows the layout of the two fans. They are about 3/4" away from the cooling fins.
When I receive the fan grills late next week I will finish the installation. When done I will cool the refrigerator down with and without the fans running. It will be interesting to see the results which I will share including finished installation pics.
...my total installed cost: Less than $10.00.