Question about Coleman Electric Cooler 40 Beverage Cooler

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Fan blower coleman electric cooler

Which direction should the fan blow the air - should it be exhausting off the heat sink or blowing downward. I have ice building up inside the cooler. The cooler is new but I had fan fan blades break so I replace the fan with a 12 v brushless fan and now have this ice problem. The frig stays 20 degrees cooler than outside temp, but is building ice.

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The fan should blow air into the heat sink. The warm air exits the heat sink at both ends. (It might work the other way, haven't tried it.)

When you have ice in your cooler, you know the thermo-electric element is working well--it's below freezing!

Ice builds up because there is water in the cooler. For example, in humid weather, you open the cooler, some humid air gets in, and the cooler temperature condenses the water. You have to empty this water, either by tipping the cooler, or using a sponge.

You can easily defrost the cooler by unplugging it for an hour or so. You know it's time to defrost when you hear the fan blades making a racket because they're hitting something--a thick buildup of ice.

Posted on Jun 13, 2009

  • jiminminn Jun 13, 2009

    The fan is a common size used in personal computers. It's 92mm square by 25mm deep. (For us in America, that's 3-5/8" square and 1" deep.) You can get one where computer parts are sold, for example to people who want to build their own PC. (I found mine at a local Microcomputer store.) You might as well buy a good quality replacement fan, so get one with ball bearings (double ball bearings is even better). Expect to pay $10-15. If you can't find one locally, just Google and you will find them available on the web.

  • Bubbly Bullseye Feb 03, 2012

    The original motor should have power leads, one white, one black, or one red, one black.

    The white will most likely be your 'hot' and the black is your ground, though some times these are reversed it isn't often.

    Red would be your hot and black would be your ground.
    Wiring it "backwards" wont ruin anything it will only cause the fan to blow the wrong way. You should be 'sucking' air off of the heat sink so if the fan is blowing on TO the heat sink you need to switch the wires.

    The best way to connect something like this with with Solder and shrink wrap tubing. However you CAN use crimp connections in place of solder but it won't be as secure.


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  1. my cooler is warm inside my fan is barely turning. How do I get parts?

Posted on Oct 05, 2008

  • Bubbly Bullseye Feb 03, 2012

    You can find replacement fan motors for coolers here
    This Fan Motor works as a replacement for most Thermoelectric Coleman Coolers.


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I had a problem with ice build up also then discovered that the cooler fan needs room to breathe I moved objects out of its way then it worked great no more ice even with standing water in the bottom keep the inside motor clear. I also had a problem with the outside fan slowing down and not cooling, solution remove cover then remove fan from the backside pop out the blades with your thumb put a drop of oil in the hole where the fan shaft goes in works like new.

Posted on Feb 28, 2010

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Any suggestions on how to wire it to the cooler?

Posted on Dec 18, 2009

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