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Old 06-22-2017, 01:46 PM   #21
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There are two different ways per reefer manufacturer. Some have pan some are routed outside.

In both instances if you want the reefer to cool optimally then a trap loop should be put in the hose. Then prime it with water at the start of the season. This keeps the hot air out of the reefer.

You will be surprised at how much better the reefer cools in hot summer temps.
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Old 06-22-2017, 02:04 PM   #22
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I installed flying bug screens on my refridge vent cover and didn't recall seeing the drain line routed outside prior to this install. I checked yesterday and indeed the drain line was just chilling in the vent area. This weekend I will modify the screen and route the hose through the vent cover. Good heads up there and thank you.

Dometic install manual excerpt


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Old 06-22-2017, 02:25 PM   #23
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Ours was just hanging inside. I rerouted out the vent. But, I also curved it up and out the top vent so it formed a small trap.

That keeps a little water in the line. Otherwise, you have a small hole leading right into the back of your fridge for outside hot air.

Our last trailer we bought used. The tube was all crumbled and broken hanging straight down. The fridge never worked well until I replaced it and put the small trap bend in it. That change made a 7 degree difference in the operation of the fridge.
Unless your door seals are leaking, I doubt you're going to get much hot air up that drain line. The air can't go in unless there's somewhere else it can get out.
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Old 06-22-2017, 06:18 PM   #24
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It may not have been Forest River, it could have been the dealer who, in the prep had some moron of an employee take the fridge vent off and not put the drain tube back through the hole to the outside.
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Old 06-22-2017, 11:45 PM   #25
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Just a question about the catch pan method. What happens to the pan and its contents when you are highway-ing down a county road?
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Old 06-23-2017, 12:51 AM   #26
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Just a question about the catch pan method. What happens to the pan and its contents when you are highway-ing down a county road?
Its screwed to the wall.
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Old 06-23-2017, 07:01 AM   #27
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I agree... could have been the factory but more likely the dealer forgot to pull it through the vent door when checking the unit from new. Mine will sometimes try to pull itself back into the rear compartment if I didn't quite pull it through the vent enough.

A good thing to check though none the less.
I'll often peek at my drain to see if it's making water.
Right On,,, Dealer Job !!!
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Old 06-23-2017, 10:40 AM   #28
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Mine's OK. I did enlarge the hole in the grille that it was stuck through, so I could get it in/out easier when I remove the grille. Wish it was 1/2" longer.
Sounds like my problem! 🙀
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Old 06-23-2017, 08:43 PM   #29
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I pulled mine out far enough that it comes out the louver then rests against the bottom causing it to curve outward about an inch from the TT side.
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Old 06-29-2017, 01:13 PM   #30
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Can someone help me identify my drain on the fridge please. Is it the cap on the condenser and should it be ran outside the cubbie hole?
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Old 06-29-2017, 01:35 PM   #31
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Quote:
Originally Posted by Herowe View Post
...a small trap.

That keeps a little water in the line. Otherwise, you have a small hole leading right into the back of your fridge for outside hot air.
I replaced the drain line in our last TT.




There was no trap in the line before; when I tried to put one in afterwards the catch tray inside the fridge wouldn't drain.




So, no trap for us. And the fridge always worked just fine.

I don't think our new-to-us Rockwood has a trap in the line either.
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Old 06-29-2017, 01:41 PM   #32
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Can someone help me identify my drain on the fridge please. Is it the cap on the condenser and should it be ran outside the cubbie hole?
I think your drain line is that copper line going into the black corrugated plastic tube. My drain line looks like the black corrugated tube. Your second pic is part of the ammonia cooling cycle piping.
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Old 06-29-2017, 01:45 PM   #33
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I think your drain line is that copper line going into the black corrugated plastic tube. My drain line looks like the black corrugated tube. Your second pic is part of the ammonia cooling cycle piping.
The cooper line with corrugated tube is my gas.
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Old 06-29-2017, 02:03 PM   #34
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The drain line should run from the outlet of the drip tray inside the reefer to the outside through your exterior cover Without any trap whatsoever, or it will not drain properly. The small white plastic cap on the corregated hose shown in the picture above prevents mud daubers, etc. from plugging it.

It may be above the opening and you may have to pull it down or even move your reefer forward to access it. there is another thread on here where one camper had the line that was not run to the outside and all the water had caused damage inside the camper to the floor. You should find it and rout it to prevent this.
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Old 06-29-2017, 02:21 PM   #35
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there is another thread on here where one camper had the line that was not run to the outside and all the water had caused damage inside the camper to the floor. You should find it and rout it to prevent this.

That is *this* thread.
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Old 06-29-2017, 02:29 PM   #36
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The cooper line with corrugated tube is my gas.
Of course it is!
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Old 06-29-2017, 02:30 PM   #37
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That is *this* thread.
OK, I goofed.............SHOOT ME!
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Old 06-29-2017, 02:51 PM   #38
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No, the hose was long enough to make it through and the vent openings were large enough also.
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Old 06-30-2017, 05:41 AM   #39
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I have seen units where the drain line runs thru the unit and drains out the bottom,,,
No stupid little hose to stick out the vent door !!!
VERY NICE !!!
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Old 06-30-2017, 06:42 AM   #40
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The only time I've seen the tube sticking out the vent cover is before the TT had been prepped by dealer. The three trailers I've owned, all had an evaporation tray on the inside of the compartment which the tube drained to, exactly like your refrigerator at home.
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