New 4.3 & 6.7 fridge info - Page 11 - Escape Trailer Owners Community

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Old 08-02-2014, 12:50 PM   #101
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ETI uses Dometic RM8551- 4.3 and RM8555- 6.7 refers. You can substitute a 1 or 5 for the X in RM855X as you choose. Kenny did not say they (7 series) cooled better, just that he is not aware of any complaints. He looks you in the eye when he speaks to you and speaks his mind. Kenny said he does not have the time, resources, or inclination to own a TT and travel.
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Old 08-02-2014, 01:19 PM   #102
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Bob- what I should have said was no search results came up with the X in the model #'s. From your last sentence "In conclusion: Kenny says that the older RM755X models have better insulation, more heat exchange area, and a larger volume of refrigerant than the current RM855X model refers", one might believe there could be better performance in the RM7555 if the statement is factual.
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Old 08-02-2014, 01:30 PM   #103
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I think that if this fridge issue isn't solved by the time my build sheet must be finalized I will ask Reace to install an older model fridge. Even if it is bigger and I loose the cupboard above the fridge at least it will function properly. The fridge in our Escape 19 had to be watched carefully as even on a hot day lettuce and other things could be frozen this was the same in the units we had before in our campers. I think Dometic has built a lightweight fridge at the expense of functionality, after researching fridges I don't think the cooling unit is large enough and there probably isn't enough insulation. This is to bad because it is a nice design, maybe its time to find a proven unit and move on... just my 2 cents worth.
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Old 08-02-2014, 01:40 PM   #104
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Bob- what I should have said was no search results came up with the X in the model #'s. From your last sentence "In conclusion: Kenny says that the older RM755X models have better insulation, more heat exchange area, and a larger volume of refrigerant than the current RM855X model refers", one might believe there could be better performance in the RM7555 if the statement is factual.
Yeah, I've heard one other person say the 7 series were better than the 8 series -- and that's it. Online research comes up empty on the subject. Dometic even encourages people to "upgrade" their 7 series for an 8 series, with a nice little reference chart showing the equivalent model for fit. Maybe that's just them wanting to sell more fridges, but I don't see anything online providing evidence the 7 series is better.

Even after all these threads and all this research, nobody has actually pinpointed the cause of the poor performance on some of the fridges.

Still leaning toward using an AC/DC fridge, and being the guinea pig....
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Old 08-02-2014, 01:45 PM   #105
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Old 08-02-2014, 01:46 PM   #106
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ETI uses Dometic RM8551- 4.3 and RM8555- 6.7 refers. You can substitute a 1 or 5 for the X in RM855X as you choose. Kenny did not say they (7 series) cooled better, just that he is not aware of any complaints. He looks you in the eye when he speaks to you and speaks his mind. Kenny said he does not have the time, resources, or inclination to own a TT and travel.
Hi: jubal... I'm beginning to believe that "New and improved" really means cheaper to mfg. The reason Reace stopped using the 7series refers was Dometic stopped making them. Too many cooling issues and failures. Seems like they didn't learn anything except how to increase their profit margin with the 8series!!! I really like the electronic controls, the blue light, and the removable freezer compartment.
All this talk about refers has got me checking ours daily. Set on max. 5 bars and 120V by morn. the refer was at 32*F and covered in condensation. On our last trip home I believe the propane flamed out, and never re lit, causing the rise in temp into the red zone on the old thermometer. Alf
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Old 08-02-2014, 02:29 PM   #107
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Anyone have a link to the (old) blowing out problem? Reace mentioned it recently, and I think cpaharley and/or Jon addressed it once upon a time. I think we may be having that issue as well. I'd like to do what I can to control the inflow through the lower vent, but this also seems counter to getting enough airflow up through the fins for the under-performing cooling system.
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Old 08-02-2014, 02:38 PM   #108
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Good morning!

Well, today I came in and opened the fridge (which has 18 bottles of water in it) and the temp is at 1 C. So far so good. Fridge fins are at -1 C and freezer fins are at -20 C. It is supposed to get hot again today, so I will keep opening the fridge throughout the day and see how she goes!

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Old 08-02-2014, 03:01 PM   #109
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Bob- what I should have said was no search results came up with the X in the model #'s. From your last sentence "In conclusion: Kenny says that the older RM755X models have better insulation, more heat exchange area, and a larger volume of refrigerant than the current RM855X model refers", one might believe there could be better performance in the RM7555 if the statement is factual.
It is also interesting to note that the dumetic 7 series refers use more energy. Is there a correlation between energy usage and cooling capability ?
Sigh, as my alter ego pointed out that $90 for a interior fans buys a lot of ice or is 1/3 of the cost of a very well insulated cooler.
In the course of discussion it would be helpful top post the size of refer you have or are making reference to.
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Old 08-02-2014, 04:03 PM   #110
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Results with the Fridge Fix fan? Unfortunately I did not have good success. This also played a bit in the drop in temp before we hit the road. Side note, I now had the fridge set on max and figured it will shut off when it needs to as I did not want to gamble with a lower setting. On a few mornings, with the fridge cooled down nicely, I would switch the inside fan on to see if I could get it colder, and the temp would go up. I tried leaving it on longer hoping it would reverse itself and it never did.
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Is it possible that the Fridge Fix fan, which is supposed to circulate quite a bit of air, is actually putting pressure on the door seals and causing cold air to escape the fridge with the unintended result of being replaced by warm air from inside the trailer?
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