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Author Topic: I will be performing maintenace on my AC's. tomorrow. One question.  (Read 287 times)

Rene T

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Tomorrow I plan on going on the roof, remove to AC covers and washing the condenser fins carefully. If I use a water hose to rinse, is there any way for water to seep into the RV other than by the gasket between the AC and the roof which I will avoid hopefully?
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

Lou Schneider

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Re: I will be performing maintenace on my AC's. tomorrow. One question.
« Reply #1 on: August 12, 2017, 08:36:46 PM »
Not unless you also remove the inside plenum cover that encloses the evaporator and inside blower.  Then you have a substantial hole directly into the interior.

If the gasket leaks, you want to fix it anyway, or you'll get rainwater inside the RV.

Rene T

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Re: I will be performing maintenace on my AC's. tomorrow. One question.
« Reply #2 on: August 12, 2017, 08:57:48 PM »
Thanks Lou.
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

Charlie 5320

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Re: I will be performing maintenace on my AC's. tomorrow. One question.
« Reply #3 on: August 12, 2017, 09:05:40 PM »
Rene, I have found Super Clean works very well for cleaning condensers. I mix it 1/3 to 2/3 water and spray it on with a sprayer, then rinse with water straight from the hose, no nozzle.
2003 National Dolphin 5320
496  8.1  Workhorse

98 Damon Daybreak 3130
GM Vortech 454  4L80E
SOLD

Rene T

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Re: I will be performing maintenace on my AC's. tomorrow. One question.
« Reply #4 on: August 12, 2017, 09:15:03 PM »
Rene, I have found Super Clean works very well for cleaning condensers. I mix it 1/3 to 2/3 water and spray it on with a sprayer, then rinse with water straight from the hose, no nozzle.

I was going to use a mixture of vinegar and water in a spray bottle.

Update: I just went down in my basement to see what else I may have and guess what I found. A spray bottle of Super Clean. Now I'm ready.
« Last Edit: August 12, 2017, 09:21:49 PM by Rene T »
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

John From Detroit

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Re: I will be performing maintenace on my AC's. tomorrow. One question.
« Reply #5 on: August 13, 2017, 07:35:03 AM »
I use compressed air more than water now days.  But I've used water in the past and the above is correct.
Nothing adds excitement like something that is none of your business
My Home is where I park it.

Rene T

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Re: I will be performing maintenace on my AC's. tomorrow. One question.
« Reply #6 on: August 13, 2017, 01:21:11 PM »
Well I did it. I surprised to find or what I didn't find. It wasn't that dirty up there. The sheet metal housings, compressors, fans and the motors were covered with a layer of dust but the condenser fins were relatively clean. I did use super Clean and it worked real good. One of the AC's was 6 years old and the other was 4 years old and they've never been cleaned as far as I can remember.
Now, Bring on the heat. I'm ready.
« Last Edit: August 13, 2017, 01:22:56 PM by Rene T »
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

Lou Schneider

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Re: I will be performing maintenace on my AC's. tomorrow. One question.
« Reply #7 on: August 13, 2017, 01:26:33 PM »
Congratulations!  While you were up there, did you notice if any of the cooling fins were flattened out, or are they all straight so air can pass through?  If any were flattened, that will block the airflow through that portion of the condensor just like having it plugged with dirt.

You can get an inexpensive fin straightening tool at most hardware stores, you run it down the fins and the teeth straighten them out like a using a comb.
« Last Edit: August 13, 2017, 01:28:42 PM by Lou Schneider »

Rene T

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Re: I will be performing maintenace on my AC's. tomorrow. One question.
« Reply #8 on: August 13, 2017, 02:40:54 PM »
Congratulations!  While you were up there, did you notice if any of the cooling fins were flattened out, or are they all straight so air can pass through?  If any were flattened, that will block the airflow through that portion of the condensor just like having it plugged with dirt.

You can get an inexpensive fin straightening tool at most hardware stores, you run it down the fins and the teeth straighten them out like a using a comb.

They looked good.
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

Charlie 5320

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Re: I will be performing maintenace on my AC's. tomorrow. One question.
« Reply #9 on: August 13, 2017, 05:07:07 PM »
They looked good.
When I was in the field cleaning residential condensers, some of them had a lot of mold in them stopping them up. I found Super Clean worked almost as good as the commercial coil cleaner but without the damage to the coil, and a lot cheaper. Dawn liquid does a good job to for just dirt.   
2003 National Dolphin 5320
496  8.1  Workhorse

98 Damon Daybreak 3130
GM Vortech 454  4L80E
SOLD

whiteva

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Re: I will be performing maintenace on my AC's. tomorrow. One question.
« Reply #10 on: August 13, 2017, 06:01:10 PM »
Not to say my method is better than any other however, when I clean AC coils, home, boat, or RV, first I spray a coil cleaner and wait 10 minutes then using a water hose on one side and wet vac on the other side. No mess and nice clean results. Using this method I can also clean the return air coils without allowing water to enter the vehicle or house.  (of course the boat has only evap coils but you get the idea)

After cleaning use a coil comb to straighten any bent fins.

Cheers!
2008 Winnie 29TR, Class C
Me: RETIRED: Aerobatic flight instructor, RE Broker, EE,-
DW, Nan, works Finance for RV dealer. Travel short distances pulling 77' MGB on dolly.
 If not in the RV we are on the Sea Ray, with Shadeaux the black cat. Stop by for coffee or beverage

Rene T

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Re: I will be performing maintenace on my AC's. tomorrow. One question.
« Reply #11 on: August 13, 2017, 07:32:28 PM »
Not to say my method is better than any other however, when I clean AC coils, home, boat, or RV, first I spray a coil cleaner and wait 10 minutes then using a water hose on one side and wet vac on the other side. No mess and nice clean results. Using this method I can also clean the return air coils without allowing water to enter the vehicle or house.  (of course the boat has only evap coils but you get the idea)

After cleaning use a coil comb to straighten any bent fins.

Cheers!

I can just see me on my RV roof with a garden hose and my huge Craftsman Shop Vac. It ain't going to happen.  But thanks for the idea. It may work for some people. 
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

 

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