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Old 10-23-2011, 10:04 AM   #1
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Refrigerator Fan

I was reading some older threads about people having problems with their refrigerators frosting up or not being cold enough. Reading another forum I came across this fan that sells on Ebay for $15.00 including shipping. It clips to your refrigerators fins at the back of the refrigerator with an alligator clip, which also is the ground. The other wire attaches to you refrigerator's light. It took me about 10 minutes to do mine because I had to solder the wire to the positive. Other refrigerators have a spade clip so you can just attach the positive wire to it and not have to solder. Anyway, all the reviews are positive. I just put mine in yesterday so I don't have any input yet on its effectivness. It is cheaper than buying the fans that Camping World sells and you have to use batteries to operate. The fans air movement goes towards the fins so you don't loose cool air when you open your refrigerator. For $15.00 bucks it's worth a try. Go to the Ebay site and type in Domestic Norcold refrigerator fan
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Old 10-23-2011, 10:31 AM   #2
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It is normal for the fins to get some frost or ice.

I don't want the air blowing directly on a section of the fins. It is better to mount the fans so that it stirs the air by pushing the air in the bottom up.

ken
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Old 10-23-2011, 11:05 AM   #3
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TXiceman--Can you elaborate a bit more about why not to have them blow on the fins? I have not installed my fan yet and have been mulling over the best install. I am intrigued by your comments and would appreciate the rational.

I am not questoning your comments I just want to understand the process better and since I have not installed yet I can pick what ever position to place the fan I choose. I like to know why I am doing what I am doing.

Or-if you have explained this before just direct me to a thread.

Thank you in advance.
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Old 10-23-2011, 12:51 PM   #4
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The coil (fins) are designed to operate in a static state with just thermal convection of air over the fins. The liquid refrigerant distribution was designed to provide a even feed to the coil based on an equal loading across the fins. By putting the fan to blow on a part of the fins, the load is concentrated in this one are, but what you do not know if the refrigerant is being fed properly to fins.

I have designed direct expansion evaporator coils and concentrated loads in one are are not a good thing.

ken
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Old 10-23-2011, 12:59 PM   #5
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Hi

There's a very comprehensive recent discussion of fridge fans at
Fan in the Fridge-

It even has one fellow's project through the first few months of operation!

It might be worth checking out...

Francesca
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Old 10-23-2011, 01:08 PM   #6
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I have 2 of those fans blowing onto the fins and works great. Many other people have those also.
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Old 10-23-2011, 01:17 PM   #7
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I've had the fan for a couple of years and it works well. Our fridge light did not have an accessible hot wire, so, following instructions from another forum, I ran a wire down the drain line to a point behind the unit where I could get power. Only problem we had was a bottle interfered with one of the two fans and now it works only sometimes and has become noisy. Replacement is on my to-do list.
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Old 10-23-2011, 01:31 PM   #8
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Quote:
Originally Posted by Half Dimes View Post
I've had the fan for a couple of years and it works well. Our fridge light did not have an accessible hot wire, so, following instructions from another forum, I ran a wire down the drain line to a point behind the unit where I could get power. Only problem we had was a bottle interfered with one of the two fans and now it works only sometimes and has become noisy. Replacement is on my to-do list.
This is the type of installation I will need to do. What gauge wire did you use to run down the drain tube? And, where did you hook up back there? I have a Norcold 1210IM 4 door. Your help would be appreciated.

Don
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Old 10-23-2011, 01:59 PM   #9
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Originally Posted by akadeadeye View Post
This is the type of installation I will need to do. What gauge wire did you use to run down the drain tube? And, where did you hook up back there? I have a Norcold 1210IM 4 door. Your help would be appreciated.

Don
Hi, Don

Re your Norcold (1200 serieS?) 4-door:
You might check out the posts and pics starting with #115 at Fan in the Fridge-

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Old 10-23-2011, 02:03 PM   #10
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just for info after reading the older posts, the one I purchased for $15.00 on Ebay was the black one which puts out more than the older blue ones did. I like the velcro Idea so when I get home tonight, I'm going to add some small pieces of velcro to the unit and more it to the right side. Thanks for directing me to the older posts about the unit.
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Old 10-23-2011, 03:35 PM   #11
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TXiceman---Thanks for the response--- that's good enough for me I'll take the same route and see what happens----the main things to accomplish iare better and cooler distribution of the temperature and to prevent the frosting of the fins.

Franchesca---Thanks for the thread--I had search ed about twenty pages of old threads and just did not have that one pop up----it is where I got the idea in the firs tplace---so here I go into uncharted waters.

This is a pretty easy deal actually.
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Old 10-23-2011, 08:24 PM   #12
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Quote:
Originally Posted by akadeadeye View Post
This is the type of installation I will need to do. What gauge wire did you use to run down the drain tube? And, where did you hook up back there? I have a Norcold 1210IM 4 door. Your help would be appreciated.

Don
I used some old 22 ga solid bell wire that I had laying around. As to where I connected it, I used a saddle splice on a 12 volt wire near the circuit board. I have a Dometic, so I can't really help on your Norcold.
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Old 11-08-2011, 02:01 PM   #13
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... Only problem we had was a bottle interfered with one of the two fans and now it works only sometimes and has become noisy. Replacement is on my to-do list.
Just got my new fan in the mail yesterday. I wanted to do something to prevent interference that damaged the old one. Looked around my workshop and found an old water heater mud dauber screen from my previous rig. The fan frame fit neatly into one half of the screen so I cut the screen in half, drilled a hole in each corner of the fan frame and attached the fan to the screen with cable ties. Worked out well and even looks better inside the fridge. Here's some photos:


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Old 11-08-2011, 02:17 PM   #14
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This sounds like a good idea. Wonder why the manufacturers don't include this fan if it is an improvement?

Does anyone know whether this installation will void the warranty on a new appliance? Thanks.
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