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Old 08-19-2022, 01:40 PM   #1
FlyboyTR
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Default Refrigerator Fan, Direction of Air Flow

After my fiasco with finding all the rat damage to the fridge...I have been going through everything. I am puzzled about the OEM fridge fan and the direction of air flow. Our previous 2720, the air flow was downward (sucked heat off the top and expelled it out the bottom. That seems right for me...

However, on our 3023 it is just the opposite. The fan pushes air upwards. That seems backwards since (IMO) the goal is to remove the hot air from the top and exhaust it away versus pushing cool air upwards and out the top vent and between the roof shells when closed.

So, Which direction is correct? Thanks!
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Old 08-19-2022, 02:38 PM   #2
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The air should go down, out the hole in the floor.
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Old 08-19-2022, 03:06 PM   #3
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Agreed.

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Old 08-19-2022, 05:15 PM   #4
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Guys,
Thanks for the confirmation. Down flow was the way our previous TM was. So...Either this was possibly wired wrong (some will run backwards) or the fan itself was installed upside down! I'll be adding that to my every growing list! Thanks again!
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Old 08-20-2022, 07:23 AM   #5
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Very possible it was just installed backwards. On my 3124, “TOP” is hand written in marker on the top side of the fan hub, so it wouldn’t surprise me there was a time when they not so infrequently were installed upside down.

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Old 08-20-2022, 07:47 AM   #6
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Quote:
Originally Posted by ShrimpBurrito View Post
Very possible it was just installed backwards. On my 3124, “TOP” is hand written in marker on the top side of the fan hub, so it wouldn’t surprise me there was a time when they not so infrequently were installed upside down.

Dave
Dave,
Thanks. Interesting! I will either correct the wiring or flip the fan!
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Old 08-20-2022, 11:49 AM   #7
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The fan blows out, not in!
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Old 08-20-2022, 01:23 PM   #8
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Yep, it sucks.....the air out. Sorry..just being silly here.
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Old 08-20-2022, 03:12 PM   #9
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Quote:
Originally Posted by Kidkraz View Post
Yep, it sucks.....the air out. Sorry..just being silly here.
LOL............................

I was able to clean and flip the fan. Wiring was correct. Also realized there was a large mouse-hole between the intake and exhaust holes in the floor. Also took care of that with a piece of flashing that fit nice and tight in the circular hole. Next step is covering the up the hole in the screen on the intake side.

Dang rats were busy. BUT thankfully...... I have not found the first chewed wire or plumbing in the camper.

We're taking her out for a three day camping trip next weekend. Looking forward to having things cleaned up and all things working properly!

Thanks again to all for confirmation that the fan should be sucking air in a downward direction!
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Old 08-21-2022, 04:18 PM   #10
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I never could understand manufacturers trying to force hot air to go down or cold air to go up. Neither one works very well. There's gotta be a better solution.
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