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Old 12-30-2023, 05:40 PM   #1
Dwainc
 
1998 25' Safari
Scotts Valley , California
Join Date: Oct 2023
Posts: 10
Images: 4
AC Unit leaking (1998 Safari)

Hello...
Help if you can.. thanks.

Recent rains have produced a small drip/drip/drip from the air conditioner.
I believe the unit is a Duo-Therm 600 series.

I pulled the interior cover off the AC unit and found the plastic pan has cracks at what I believe is the condensation trough of the pan. Most of the cracks are on the side where the drain hose is connected to the pan.

I've had zero luck in finding a replacement "pan".
What seems to be the standard option, is to replace with a drain kit. (see attached). I'm worried this option will not have a condensation pan.

Also, my first attempted at pulling the unit off the roof failed. It seemed like there was something holding it in place. Like another bolt or two.
Not the three long bolts already removed.

Any suggestions would be greatly appreciated.

Thank you,
Dwain Christensen
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Old 12-30-2023, 09:03 PM   #2
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1994 25' Excella
Waukesha , Wisconsin
Join Date: Sep 2020
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There should be four bolts holding an a/c unit to the roof, not three. At least in my experience, they are all held by four bolts - one in each corner of the opening.

We have that drain kits installed on our a/c unit - no full drain pan. It works well from what we can tell, although we did have to double gasket our install to give enough clearance for ours to fit without the a/c unit resting on the drip cups.
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Old 12-31-2023, 07:01 AM   #3
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1997 28' Excella
Daniels , West Virginia
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I do not have the same unit;but a similar experience. JB Weld worked for me
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Old 12-31-2023, 09:23 AM   #4
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1973 21' Globetrotter
Houston , Texas
Join Date: Sep 2009
Posts: 3,320
Yes, the drain pan is now obsolete, probably because they were so prone to cracking and causing leaks. The drain pan basically catches the water that comes out of the left and right hand side condensate drain holes, and then funnels it into a common trough which then is drained down the condensate drain tube.

The new "condensate cup" system, essentially does the same thing, except that there is a cup under each drain hole, and a bit of hose that brings the contents of the cups together to connect to the condensate drain tube.

So there is less to go wrong with the cup system. But, to install it, you have to remove the AC, remove the old drain pan, which may be glued to the roof with vulkem, and then install the new system and reinstall the AC.

If you have removed all the long screws and dropped the interior "clamping" mechanism through which the long screws go, then it could be that your AC is simply glued to the drain pan with vulkem or equivalent (and the drain pan is glued to the roof). You may have to pry the whole assembly off, then break up the drain pan so that you can cut out the existing foam gasket between the AC and the drain pan.

Good luck!
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Old 12-31-2023, 05:58 PM   #5
Dwainc
 
1998 25' Safari
Scotts Valley , California
Join Date: Oct 2023
Posts: 10
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Thank you @Belegedhel .
This does seem to be the case. Guess I'll have to wait for dry weather.
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Old 12-31-2023, 06:06 PM   #6
Dwainc
 
1998 25' Safari
Scotts Valley , California
Join Date: Oct 2023
Posts: 10
Images: 4
The mess

This the three bolts and well the entire mess. Guess I have to wait for dry weather.
I'm unclear how rain water gets into the drip pan/cup systems.
Thank you.
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Old 01-01-2024, 01:09 PM   #7
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1973 21' Globetrotter
Houston , Texas
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Rain water shouldn't get into the cup system, unless it gets under the AC shroud and finds its way to the condensate holes.

Rain will get into the drain pans, as the pan has a lip that surrounds the entire AC. So some of the water that runs down the surface of the AC will follow the curves and end up going into the pan. The pan should have a series of small holes along either side that are there to facilitate letting rain water leak out, but they probably are plugged up with schmutz, therefore the water ends up in the condensate drain area of the pan, and eventually leaking into the interior of your trailer because of a cracked pan.
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