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 6/11/2006 3:37 PM
 
Question on the RV Air conditioner. I’m getting water dripping on the inside the ceiling cover which then drips to the floor. Starts during mid-afternoon and will continue for a while after you shut it down. I pulled the cover off and all the drain holes were clear and the condenser fins you can see through. Used air and blew what little dust might be on them. The roof seal is good or I would be getting water in when it rains. I do see along the bottom edge of the blower enclosure a couple of places that the sealant is cracked, could this be my water leak? Or, could it be that the coil inside the cover be the problem? Icing up? I have good airflow when the fan is blowing. The filter is clean. I'm going to caulk the cracks around the bottom. Not sure what else to do.
Steve Zehr Eastern Kansas Land of Ahhhs (OZ) 2004 F350 Crew Cab 6.0 dsl dually, B&W Hitch 1992 Hitch Hicher II 30 ft, with super slide.
Life is a hard teacher, it gives you the test before it teaches you the lesson.

Steve Zehr Miami Co. Kansas 2004 F350 Crew Cab 6.0 dsl dually, B&W Hitch 2009 Bighorn 3670RL
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 6/11/2006 3:54 PM
 
Steve, Often times condensation leaking back inside is indicative of a plugged A/C tray drain outside. As you probably know, your roof A/C sits in a tray/pan like assembly with the plastic cover over it. This "tray/pan" has a tendency to hold condensation under certain conditions, this tray is supposed to have small drain holes in a couple places to allow condensation to drain off and out of the way, more than likely this is the cause of your inside water leak. Go up and remove the cover, and look all over in around and under where your A'C compressor and coling fins rest, you'll probably see dirt or leafs anything could be plugging these drains. Neil

Neil
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 6/11/2006 4:43 PM
 
Nuts on bracket located inside motorhome that hold roof air were loose on my two a/c units. Warm air was coming in causing condensation to form and drip down even a/c vents. After taking off inside cover and tightening nuts (about 4 on each a/c) problem went away. Got two new foam seals that go on roof that I will be putting on later. To hot down here in La. now. Roy Cogburn
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 6/11/2006 6:00 PM
 
My comment is only related but not a solution. Do not over tighten the A/C to the mounting frame. It should be snug; but over tightening could squeeze the gaskets and over time make them ineffective.
An observation: There should never be frost on any element in the A/C unit. Other than clogged filters, frost/ice build-up might mean you need a refrigerant charge. Frank FitzGerald Middleton MA RexAir 37' with Saturn L300 Toad Oh Yes I almost forgot, Pat-my copilot

Frank FitzGerald Middleton MA RexAir 37' with Saturn L300 Toad Oh Yes I almost forgot, Pat-my copilot
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 6/11/2006 6:07 PM
 
Thanks for the responses. If the gaskets were bad or loose, wouldn't I be getting rain water in? The pan looks clean, have seveal holes around the edge of the drain pan and all are/were clean. I'll take the hose up and shoot some water just under the inner housing and see what come out. There may be mud from all the dust(gravel road) that may have gotten under there. Steve Zehr Eastern Kansas Land of Ahhhs (OZ) 2004 F350 Crew Cab 6.0 dsl dually, B&W Hitch 1992 Hitch Hicher II 30 ft, with super slide.
Life is a hard teacher, it gives you the test before it teaches you the lesson.

Steve Zehr Miami Co. Kansas 2004 F350 Crew Cab 6.0 dsl dually, B&W Hitch 2009 Bighorn 3670RL
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 6/11/2006 7:06 PM
 
Steve - Several years ago there was a thread about a similar problem, and it was mentioned that Duo-Therm had a problem with the plastic pans on some units cracking and leaking. If you still have the roof cover off, you might want to verify that that's not the problem. Good luck. - Dave This message was edited by Dave_Peters on 6-11-06 @ 7:07 PM

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 6/11/2006 7:13 PM
 
I had the same problem. Took a whole summer of removing,replacing,caulking etc. Turned out to be the plastic tray was cracked along a corner lip. You couldn't see it unless you flexed the tray all over near the crack. Also, I'd tighten down those mounting nuts a little bit. Yes you may ruin the seals if you do it too much. But, so what, they are an easy replacement. I've ripped the A/C apart so many times, I'm an expert at it. The darn compressor finally quit last year and I replaced the whole thing. Ah, trouble free for over a year now! Every Day is Saturday
funner travelin, Ebs,Donna & Beezer the Beast & Buffy the Bitch

Every Day is Saturday funner travelin, Ebs,Donna & Beezer the Beast & Buffy the Bitch
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 6/11/2006 8:27 PM
 
Dave Bob, mine is a Duotherm Brisk air, triler a 92. Papers for the unit do not show a drain pan. I just made a mad dash to put the cover back on, looked like a storm was blowing in. I did take the hose and flushed inder the motor, and the whole metal pan. There was some dirt but not what I would call alot. So I will go back up later and seal around the housing that look cracked, and then we'll see if I need to change the gasket or have it recharged. Steve Zehr Eastern Kansas Land of Ahhhs (OZ) 2004 F350 Crew Cab 6.0 dsl dually, B&W Hitch 1992 Hitch Hicher II 30 ft, with super slide.
Life is a hard teacher, it gives you the test before it teaches you the lesson.

Steve Zehr Miami Co. Kansas 2004 F350 Crew Cab 6.0 dsl dually, B&W Hitch 2009 Bighorn 3670RL
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