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Old 03-16-2015, 06:33 PM   #1
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Servicing the a/c's for the first time

I plan on going up top tomorrow and cleaning the air conditioners with an air hose. Any helpful tips on cleaning them?
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Old 03-16-2015, 06:38 PM   #2
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This job is on my list also.....watching
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Old 03-16-2015, 07:30 PM   #3
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Quote:
Originally Posted by maneddi View Post
I plan on going up top tomorrow and cleaning the air conditioners with an air hose. Any helpful tips on cleaning them?
Well first of all don't fall off. Second, are you going to do this without removing the housing? Been a while but I think those things (like all other plastic RV) get very fragile sitting in the sun for years.

Maybe you've seen this video

https://youtu.be/NIp4nym7UYw
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Old 03-16-2015, 07:37 PM   #4
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Web 14 oz. Condenser Coil Cleaner-WCOIL - The Home Depot


This stuff is amazing. I use it on my radiator and on my air conditioner coils. It is one of those products that really works. I bought ten cans because it seems when a product works they take it off the market.
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Old 03-16-2015, 08:15 PM   #5
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When I replaced the fan motor on mine last year I noticed the fins were badly bent. HD was out of stock for the fin comb, so it did not get straighten out. Picked one up later, but now its on my to do list. Hope I can still find the comb I bought. May want to pick up a comb, or carry a flat screw driver to save you a trip back up on the roof, incase you have damage.
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Old 03-16-2015, 08:20 PM   #6
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I noticed he blew from inside the coils outward. If there is a tight spot I can't get the air nozzle to, does it hurt anything to blow from outside inward?
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Old 03-17-2015, 04:55 AM   #7
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you really don't need to blow the coils! (bad idea) you may do damage to coils! get coil cleaner from Lowes or Home Depot ! then straighten out fins on coils!
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Old 03-17-2015, 05:58 AM   #8
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In QT's 1 & 2 we have this for you.

Here is another one for you.
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Old 03-17-2015, 07:57 AM   #9
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While cleaning your A/C units take a good look at your compressor start capacitor with associated PTCR.
Here is a pic of a bad and good one. It is located under a slanted sheet metal cover that can be accessed once the fragile shroud is removed. Common problem with A/Cs.
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File Type: bmp New Picture.bmp (1.81 MB, 89 views)
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Old 03-17-2015, 08:28 AM   #10
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Best leave the aircon completely alone and spend your time and money doing something a lot more enjoyable and a lot safer.
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Old 03-17-2015, 08:39 AM   #11
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For those straightening the fins, I found my fin comb did not fit. I used a plastic pry tool from Harbor Freight.

It took me 6 hours to do all 3. My got flattened from pea size hail driven by 20 mph winds. 40% of each unit was flat.

Took the top off and ran the tool starting from the straight section working into the bent area.

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Old 03-17-2015, 09:02 AM   #12
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The coil cleaner works well, but remember it is an acid and was made to use when it would drip on the ground. If you use it I'd make sure you rinse with lots and lots of water, you don't want to hurt the roof or paint as it's running off. Something you may consider instead of coil cleaner is Simple Green. It's not as strong but safer.
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Old 03-17-2015, 02:30 PM   #13
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Thanks everyone. I didn't get up there today as its a bit windy. When I do though I only plan on using air unless its just too dirty.
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