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Old 09-17-2018, 07:34 AM   #1
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Roof AC leaks condensation inside

I recently noticed that my Atwood AC unit started leaking condensation inside out of the air intake. It seems to change depending on the level of the RV. I checked the bolts holding the unit down and found the front ones were very loose so I tightened them. I thought the problem was solved but today it started again. I raised the front of the coach a little and it has stopped. I removed the top cover but did not see anywhere a drain might be plugged. I am guessing the roof seal is bad after being loose. I would appreciate any input you might have on this.
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Old 09-17-2018, 07:39 AM   #2
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The pan under mine cracked. Hope your problem is only a clogged drain hose.
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Old 09-17-2018, 08:13 AM   #3
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The unit is less than 2 months old so it is still under warranty so hopefully it will get fixed soon.
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Old 09-17-2018, 08:26 AM   #4
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Check your filter. If it has a lot of dust build up it ours does that.
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Old 09-17-2018, 08:32 AM   #5
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Clean!
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Old 09-17-2018, 09:20 AM   #6
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Quote:
Originally Posted by Oldnapapartsguy View Post
I recently noticed that my Atwood AC unit started leaking condensation inside out of the air intake. It seems to change depending on the level of the RV. I checked the bolts holding the unit down and found the front ones were very loose so I tightened them. I thought the problem was solved but today it started again. I raised the front of the coach a little and it has stopped. I removed the top cover but did not see anywhere a drain might be plugged. I am guessing the roof seal is bad after being loose. I would appreciate any input you might have on this.
Rumor is Atwood is coming out with a new TSB soon. In certain high humidity situations they are not seeing enough return air and condensation ensues. They suggest pulling the return air filters temporarily to see if this resolves it. I believe their answer was maybe a larger interior cover and grill? I have not seen it yet.

Also, make sure the baffle up there is secure..the one that separates the supply from the return.
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Old 09-17-2018, 09:30 AM   #7
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Hopefully so! I will try it with the filter in (just cleaned but wasn't very dirty) and then if it leaks I will remove it. As soon as I put the front of the motor home up a little it usually stops leaking.
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Old 09-17-2018, 10:25 AM   #8
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AirCommand Water Penetration

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Old 09-17-2018, 03:29 PM   #9
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Condensation

We had the same problem three nights ago and woke up to a very wet rug. This on a 2018 Isata3. Extremely humid weather for sure and thought that was the only problem but it happened again next night. Pulled the filter out and cleaned it next morning. It had plenty of grit on it especially near the front three inches. that fixed the problem for us as the humidity hasnít gone down and in fact is higher now and no condensation leaks inside.
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Old 09-17-2018, 03:33 PM   #10
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Check your filter. If it has a lot of dust build up it ours does that.
This was my issue (dirty filter) 2 months ago
Went to Lowe’s and bought the foam filter used in window air conditioners for $2
Used the old filter as template and was able to cut out 3 filters for the RV
Out of this one $2 piece
This filter not in same dept as the home furnace filters just so you know
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