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04-22-2016, 07:21 AM
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#1
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Senior Member
Name: Z
Trailer: Sasquatch
Montana
Posts: 2,556
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3 Way Fridge Temp
Yes, this has been beat to death...
Just some questions.
My fridge is useless once it gets over 60 degrees outside. It cools great if it's in the 40s. Just fine in the 50s. In the 60s it starts to struggle and once it hits 70, my fridge quickly makes its way up to 60. Last night it didn't even recover at all. With temps down at 60, my fridge was still 60 this morning. So all my food sat at room temp for the last 16 hours or so.
The flame seems to be a nice blue. So either the fridge just isn't up for real work anymore, or I've just got one of those that needs better ventilation. It seems like, reading over other threads, some people's fridges just do fine, others don't. I guess mine "don't"
Just curious with people who have been down this road, do you think putting a fan at the top vent, blowing out, is worth a try? Does this sound like that kind of situation?
It's pretty disappointing. I mean this basically means my fridge is useless in the summer. Only useable in the spring and fall. Unless fans work.
I know from experience the fridge is an expensive thing, if it needs anything other than routine maintenance. I put a brand new Dometic in my last camper, and had the same exact issues. Annoying.
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04-22-2016, 07:34 AM
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#2
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Senior Member
Trailer: No Trailer Yet
Posts: 1,704
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I have the 3-way Dometic. Have you tried running it on AC? There's one thing you can try and that's taking it somewhere "bouncy". I always heard nightmare tells of having to take them out and roll them since they're "absorption" (ammonia-based) refrigerators and once it's settled in the tubes wrong, you have to do the above. Not saying this is the case.
The flame in mine is small as well as it doesnt take much. I did a little research for you and I'm going to post the link here that you may want to read/study a little. This would be my best choice for now. You're going to get alot of opinions and suggestions. It seems this article covers most.
https://rv-roadtrips.thefuntimesguid...tor-repair.php
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04-22-2016, 08:01 AM
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#3
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Senior Member
Trailer: 2002 19 ft Scamp 19 ft 5th Wheel
Posts: 3,640
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I put a solar fan on the top vent.
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04-22-2016, 08:14 AM
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#4
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Senior Member
Name: Clif
Trailer: 08 Weiscraft Little Joe 14 Subaru Outback 2.5i CVT
Louisiana
Posts: 754
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Do you have a manual? If not check here in our Documents Center to see if there is a download on your make and model(or close to it). Follow the maintenance procedure for cleaning the coils, flue and jet.
Here is a link to the refrigerator portion of the doc center:
http://www.fiberglassrv.com/forums/d...p?do=cat&id=18
Also, here is a link to a helpful video on cleaning the burner.
My flame was blue, but the jet wasn't letting enough gas through. A quick cleaning of the burner and jet put everything right.
Note: Spiders love the smell of propane odorant and move into the burner. A complete burner cleaning will fix that.
Heed the warning about not sticking something, like a wire or brush bristle through the jet. It's soft metal and you can ruin it.
Addendum: Per above, I put an exhaust fan on my upper vent and that does help, but deal with the fundamentals first.
And of course make sure the unit is level, especially side to side.
Good luck.
__________________
Clif
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04-22-2016, 08:16 AM
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#5
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Senior Member
Name: Mike
Trailer: 1993 Bigfoot 17 ftCB / 2023 RAV4 Trail
Ontario
Posts: 229
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Problem with fridge.
Zach;
I have a 93 B17CB and the fridge works great. The separate upper freezer section keeps frozen food rock hard and the lower fridge is cold with, sometimes, frozen drops of water on the rear fins.
That is on both propane and 110VAC.
This was when I first got it in 2007 and again after I had to replace the cooling unit which leaked out it's ammonia charge a few years ago. I did post an article about my changing it on this usegroup. You can do for a search on my name for it.
However, the fridge itself seems to work great even in temps over 90F.
I would check the venting in the back and make sure that it is totally clear. My CB version has the venting in the roof with a long channel but, I think, your Gaucho version has a smaller rear vent that doesn't go very high. A 'chimney' effect wouldn't be as pronounced. Perhaps an auxiliary 12V fan may be needed - but definitely ensure that a good path is available for the heat to escape from the rear. Maybe someone put screening in the rear vents? Or the fridge is pushed in too far, close to the rear.
It should work almost as well as a home fridge.
Good luck.
Mike .....>
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04-22-2016, 08:48 AM
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#6
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Senior Member
Name: Robert
Trailer: Surf-Side
Manitoba
Posts: 287
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A common cause of this condition is a dirty chimney , very difficult to clean properly but often a good blast of compressed air will do the job.
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04-22-2016, 09:19 AM
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#7
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Senior Member
Name: Greg
Trailer: 2008 Casita 17' SD
Washington
Posts: 1,997
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The fridge is 25 years old! I'm just curious as to just how long do you expect it to last?
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04-22-2016, 09:55 AM
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#8
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Senior Member
Name: Gordon
Trailer: 2015 Scamp (16 Std Layout 4) with '15 Toyota Sienna LE Tug
North Carolina
Posts: 5,155
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More recommended reading here.
BTW, at the end of that article the author says he has seem absorption fridge units working after 40 years.
Quote:
Originally Posted by Casita Greg
The fridge is 25 years old! I'm just curious as to just how long do you expect it to last?
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04-22-2016, 10:10 AM
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#9
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Senior Member
Trailer: 92 16 ft Scamp
Posts: 11,756
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Quote:
Originally Posted by ZachO
Just curious with people who have been down this road, do you think putting a fan at the top vent, blowing out, is worth a try? Does this sound like that kind of situation?
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While my old fridge struggles in warm weather it does not normally start to struggle until the temps get in high 80's low 90's.
Does it do better when on Electrical? If it does then you know it can do better on propane. If it does not then you know its probable in need of a major clean out. The stacks as someone mention need cleaning along with the propane jets. If it does not do better on Electrical then it does on propane I would suggests it may well have reached the end of its shelf life.
One thing people often make the mistake of doing is to set the temp to low causing the freezer to ice up. If the freezer ices up that will have a negative impact the fridges performance.
Check to see where the temperature probe is located inside the fridge. If it up to high near the freezer that may also impact it.
I covered my fridges sides and tops with foil bubble insulation that helped it a lot in hot weather. I also installed a fan in the rear outside compartment and run a small battery fan inside the fridge.
A last resort would be to pull it out and leave it sitting upside down for a few days to unclog it - seems you have a 50/50 chance of that working.
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04-22-2016, 10:42 AM
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#10
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Senior Member
Trailer: Trillium 2010
Posts: 5,185
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Fridge was new in 2010. Two years later I pulled it out for service and everything looked fine. Last season it stopped cooling much like you describe. While the flame looked fine, the jet needed cleaning. Once done it worked like new. Follow the instuctions, it's strait forward. I needed a microscope to actually view the orifice otherwise have faith. Raz
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04-22-2016, 11:54 AM
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#11
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Senior Member
Name: David
Trailer: Former 13’Scamp, now Snoozy
Arizona
Posts: 2,316
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I had done everything that I had read about getting better performance out of the 3 way in our 13' Scamp. Took it out, rolled it, let it stay upside down over night, cleaned everything, insulated, applied fans below to blow over the coils and above to help expel the hot air, but nothing worked in our Arizona temperatures. I finally replaced the unit with a NovaKool 12 volt only danfoss compressor refrigerator, and liked it so well, that when we purchased our new Lil Snoozy, I had the factory install a Truckfridge 12 volt only danfoss compressor refrigerator. This type of refrigerator does limit one to campgrounds with electricity, or shorten camping to a couple of days, or add solar or a generator to the mix in order to camp off the grid (boon docking/dry camping), we have both. I hope never to go back to an absorption style refrigerator again. YMMV.
Dave & Paula
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04-22-2016, 12:25 PM
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#12
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Senior Member
Name: Z
Trailer: Sasquatch
Montana
Posts: 2,556
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Thanks everyone. For the record, I should have included in my post:
I'm level
It's not overfilled
Vent is on the shady side of the camper
I have a battery powered fan inside the fridge
Nothing is obstructing the vents
My model Bigfoot doesn't have the chimney, that is correct. There's just a vent at the bottom, and a vent just above. So definitely less chimney effect.
I'm glad to hear cleaning can make such a big difference! I will try that. And probably install fans while I'm at it.
One thing someone else pointed out is the need for a "baffle". When I bought the new fridge for my last camper, I'm pretty sure the instructions mentioned the baffle. The instructions for this fridge say nothing about it, and it's not in any of the diagrams. There is no baffle behind the fridge in this camper. Thoughts?
And yes, especially with the older models, you can expect a lifetime of use out of them. Certainly some die or need major work, but often 40-50 year old 3-way fridges you see for free because they don't work, just need some basic maintenance done and they're back in action.
Barring abuse or something like the ammonia all spilling out, I expect this fridge to last quite a while still.
Thanks!
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04-22-2016, 12:35 PM
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#13
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Senior Member
Name: Z
Trailer: Sasquatch
Montana
Posts: 2,556
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Oh, and it's hard for me to say how it works on electric vs gas. The couple times I towed with it on 12V, stuff froze inside. But it was also in the 40s/50s, and obviously venting is no problem when driving.
If I plugged in right now, at 80 degrees outside, I have no idea if it would work better than gas.
In the 40s and 50s it can freeze stuff on gas, too.
When I get back to town I will clean the gas components, add a baffle, and see how it goes. For now I guess I use the cooler.
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04-22-2016, 12:53 PM
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#14
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Senior Member
Name: Clif
Trailer: 08 Weiscraft Little Joe 14 Subaru Outback 2.5i CVT
Louisiana
Posts: 754
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References to the chimney or flue are not to the roof vent but to the flue in the middle of the boiler. The boiler looks like a vertical cylinder or box on the rear of the unit off to one side. The burner is on the bottom of the boiler. There is a top that can be taken off so you can take out and clean the baffle, a helical metal strip which controls heat distribution in the boiler. You need to clean out the flue and clean the baffle. Compressed air may do it, but it may require a proper sized bottle brush if there is a lot of carbon build up. Any thing you knock loose is going to drop right down on the burner, so do this before you clean the burner.
Have fun.
__________________
Clif
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04-22-2016, 03:26 PM
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#15
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Senior Member
Name: Z
Trailer: Sasquatch
Montana
Posts: 2,556
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Thanks Clif.
I was referring to Michael's post in regards to whether I have the full vent tube going up to the roof, or a shorter run, which would mean less chimney effect for the heat being produced by the boiler. Not in regards to the actual fridge chimney.
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04-23-2016, 06:13 AM
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#16
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Senior Member
Name: jim
Trailer: Escape 21 Nov.2016
Florida
Posts: 282
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fridge
I wonder if Escape would put in a truckfridge in my new camper
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04-23-2016, 09:32 AM
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#17
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Senior Member
Trailer: 2002 19 ft Scamp 19 ft 5th Wheel
Posts: 3,640
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I think that they would put in anything that would fit as long as you would pay for it up front.
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04-24-2016, 02:47 AM
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#18
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Senior Member
Trailer: 1986 17 ft Bigfoot
Posts: 117
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Zach, while fans inside and out and adding insulation to the galley cavity can improve the performance of a working refrigerator, your problem sounds more basic. You might want to determine if the cooling unit is the source of the problem. Here is a link to how to do that:
Troubleshooting a Defective Cooling Unit
If the cooling unit is bad you may want to consider having it rebuilt. An internet search will yield several rebuilders around the country. DIY installation of a rebuilt cooling unit is an option but not a route I would choose.
I had my cooling unit rebuilt so that I could keep the original refrigerator that uses zero electricity in propane mode. Most new RV refrigerators have electronic controls that require electricity. The draw is small but 24/7. To my knowledge Dometic no longer makes a manually controlled model. Norcold makes one to fit the Bigfoot 17 galley cavity but it has less usable space than the original Dometic.
__________________
1991 Bigfoot 17 Rear Bath
2006 Dodge Sprinter
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04-24-2016, 03:49 AM
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#19
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Senior Member
Trailer: Trillium 2010
Posts: 5,185
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Quote:
Originally Posted by Tim D.
I had my cooling unit rebuilt so that I could keep the original refrigerator that uses zero electricity in propane mode. Most new RV refrigerators have electronic controls that require electricity. The draw is small but 24/7. To my knowledge Dometic no longer makes a manually controlled model. Norcold makes one to fit the Bigfoot 17 galley cavity but it has less usable space than the original Dometic.
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It's hard to get numbers on current drain of those control boards but when I was shopping about 1/2 amp was what I found. Some would say trivial but I think 12 amp-hrs is significant. The domestic 2193 is still being sold for about $500. It has no control board.I think the two way version, 2192 is still around as well. Raz
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04-24-2016, 05:46 AM
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#20
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Senior Member
Name: Gordon
Trailer: 2015 Scamp (16 Std Layout 4) with '15 Toyota Sienna LE Tug
North Carolina
Posts: 5,155
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Quote:
Originally Posted by Tim D.
...To my knowledge Dometic no longer makes a manually controlled model...
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Dometic RM2410 installed in my Scamp six months ago.
It runs on propane or 120 VAC and uses no electric other than the 120 VAC heating element.
But I do not know if they have since discontinued it (I suspect not).
EDIT: Although the trailer is six months old, upon further investigation I see the fridge was made in 2014.
Perhaps I just got lucky... I would not have been happy if I got a fridge that required a constant 12 volts.
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