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Old 07-19-2013, 07:05 AM   #1
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Air Conditioning question

Hello I have a 2007 23B and the last couple of years when it is really hot my air conditioner freezes up, and ideas as to why and what I can do to prevent it. We are going to the Land Between the Lakes in Kentucky and I am guessing it is going to be hot and with a puppy that might be left in there at times I want to make sure it is cool for him. Any help would be appreciated.

Thanks in Advance.
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Old 07-19-2013, 07:41 AM   #2
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Freezing is caused by either low charge or dirty coils. Since the refrigerant circuit is sealed, I would start by giving the coils a good cleaning.
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Old 07-19-2013, 07:47 AM   #3
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According to my buddy (a heating and cooling tech) it is because of low freon level. Take it in and have the dealer check the freon in it..
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Old 07-19-2013, 08:18 AM   #4
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The only time my OFF-ROAD POPUP air conditioner would freeze up was in the middle of the night when it was real humid outside. When mine freezes up I get a small water drip on the inside of the trailer.
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Old 07-19-2013, 09:26 AM   #5
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Hello I have a 2007 23B and the last couple of years when it is really hot my air conditioner freezes up, and ideas as to why and what I can do to prevent it. We are going to the Land Between the Lakes in Kentucky and I am guessing it is going to be hot and with a puppy that might be left in there at times I want to make sure it is cool for him. Any help would be appreciated.

Thanks in Advance.
Bob hit it......clean the evap coil (inside) and the condenser coil (outside). Besides a low refrigerant charge, you may have a defective thermostat on the unit (staying closed). I am an HVAC Tech and the last thing to check would be the charge. Its a sealed system so you want to avoid opening it up unless you have to.

Mark
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Old 07-19-2013, 10:14 AM   #6
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Hey Lurker.....

All are good suggestions and I would start by cleaning the A/C first as well.

BTW, I live in Evansville, and the Land Between the Lakes area is one of our favorite places to go. Plenty of camping, boating, fishing and things to do!!
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Old 07-19-2013, 10:18 AM   #7
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Bob hit it......clean the evap coil (inside) and the condenser coil (outside). Besides a low refrigerant charge, you may have a defective thermostat on the unit (staying closed). I am an HVAC Tech and the last thing to check would be the charge. Its a sealed system so you want to avoid opening it up unless you have to.

Mark
Thanks for all the responses. Can I see the evap coil(inside) when I open the unit inside the camper? And should use anything besides water to clean the coils?

THanks again in advance.
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Old 07-19-2013, 10:20 AM   #8
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Hey Lurker.....

All are good suggestions and I would start by cleaning the A/C first as well.

BTW, I live in Evansville, and the Land Between the Lakes area is one of our favorite places to go. Plenty of camping, boating, fishing and things to do!!
I will be in your neck of the woods the second part of this trip at Holiday World.
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Old 07-19-2013, 10:20 AM   #9
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Hey Lurker.....

All are good suggestions and I would start by cleaning the A/C first as well.

BTW, I live in Evansville, and the Land Between the Lakes area is one of our favorite places to go. Plenty of camping, boating, fishing and things to do!!
I will be in your neck of the woods the second part of this trip at Holiday World.
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Old 07-19-2013, 11:01 AM   #10
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Thanks for all the responses. Can I see the evap coil(inside) when I open the unit inside the camper? And should use anything besides water to clean the coils?

THanks again in advance.
Hey Lurker
When you swing down the cover to replace or clean the air filter, you can see one side of the evap coil. Its hard to clean with water without making a huge mess in the camper. Maybe someone else has tried a different method. In the past I have used a couple of cans of compressed air. another thing to check....when it is iced up, is the entire coil (evap) covered in ice top to bottom? A partially ice evap coil could indicate a refrigerant charge issue. Check the easy stuff first.

Mark
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