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Old 08-25-2011, 08:54 AM   #1
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Water pump in AC

Wife and I replaced a water pump in one of our roof AC's. About a dozen screws and two wires, pretty simple fix. Start to finish, 15 minutes. Helped a friend of mine replace his last year. This was in a Coleman AC on a American Tradition. FYI, when the pump goes bad, sometimes the AC leaks inside on floor (or bed) or runs down the side of the MH, according to year.
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Old 08-25-2011, 04:48 PM   #2
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Water pump???????????
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Old 08-25-2011, 04:57 PM   #3
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Did you have a swamp cooler not A/C? Or did you replace the compressor and the drip pan that leaked condensation into the rig?
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Old 08-25-2011, 05:40 PM   #4
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There is no water pump listed for my Coleman AC's in their parts list.
I had to replace a fan motor once. But that took more them 15 minutes to do.

All the condensation on the roof AC gets out by gravity. No pump needed.
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Old 08-25-2011, 07:38 PM   #5
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American Coach installs a small condensation pump in the pan and runs a tube through the roof and down inside the driver side wall and into the water and sewer compartment and drips out on the ground rather than running down the side of the MH. Just like in some houses. Our dog really likes the ice cold water on a hot day. Most of my camping neighbors thinks my water connection is leaking. I think American Coach started this in 2003. And no I don't have swamp coolers on my roof.
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Old 08-25-2011, 08:17 PM   #6
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Wasn't trying to offend you, the pump idea sounds nice. I have seen swamp coolers put on top of RVs when I was stationed in Oklahoma we spent slot of time on Lake Eufaula and saw at least 5 different versions that folks put on after their A/C died.
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Old 08-25-2011, 08:23 PM   #7
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None taken sir, things in type are sometimes not written correctly or taken out of context. Probably my writing LOL. I was a vollenteer at Shawnee FMA rally a few months ago, man was it hot!
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Old 08-27-2011, 11:29 AM   #8
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People are forever knocking on my door to tell me my fresh water hose is leaking. They see the a/c condensation pump gush water out from under the wet bay and think I have a leak!

Sure is nice not to have water running across the roof all the time.
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Old 08-27-2011, 04:53 PM   #9
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Same here Gary.
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Old 08-28-2011, 09:44 AM   #10
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air conditioner water pump??

Which brings up the question.... Could we modify our units?? even if the pipe went on to the slideout awning it would be better than water running down the windows or entry door. What type of pump is used? where does the electric tie in? is there a float switch? I hope you guys can help us all out with the answers!! Thanks in advance. DACOTAH
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Old 08-28-2011, 10:14 AM   #11
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Dacotah, When we removed our cover from the AC there is a metal box cover on the drivers side. the pump is located in that and the condensation pan protrudes outside of the main AC about 4in X 5in and about 3in deep, the pump sets down in this and turns on when the compressor is working. Pump is powered by 110, small clear tube 1/4in ID is routed through roof and wall to wet compartment. Without seeing your AC don't know if it could be retrofitted or not. Years ago on another camper I had some of the vinyl stick on gutter left over and went around the AC and channeled it to the driver side. Worked very well and nobody could see it any way. I placed it just under the edge of the plastic AC cover and brought it out the driver side. This would be cheaper and easier and the gutter comes in two colors and is readily available and cheap. Hope this helps and let us know please.
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Old 08-28-2011, 12:24 PM   #12
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rain drops keep falling on my head......

336 MUFFIN, Thanks, I will take the cover off this week and see if there is room for a small pump. I already built up some caulking on our rubber roof but did not make it high enough and the water flows over it, but your gutter idea could work. It's funny how some of these little things become big things when the DW walks out the door and gets water on her hair!! I will report back next week. I may look into a 12 volt small bilge pump and float switch from a boat, however I would have to come up with a 12 volt source for power. DACOTAH
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Old 08-28-2011, 12:49 PM   #13
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A small 12v low pressure fuel pump from a parts store would probably work and has ends for the hose already. Here's a thought, run the hose to a roof mounted plumbing vent and let it run into your grey or black tank and problem of where to run it is solved. The other end (inlet) could be another clear hose ran to the condensation pan you have. Maybe one pump would work for more than one AC. Just throwing some things out to consider.
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Old 08-28-2011, 01:44 PM   #14
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336 MUFFIN, you have some good ideas, I like running it into one of the tank vents on the roof. I will give a progress report later in the week. Thanks again, DACOTAH
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