Dometic 6.7 Cu. Ft. Fridge strategy for new trailer orders - Page 2 - Escape Trailer Owners Community

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Old 07-08-2014, 12:03 AM   #11
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It seems that many folks in south seem to not camp as much during the extreme heat almost like we don't camp in the winter. We have to camp in the summer , no choice. There are many areas that see temps in the mid 30's C, which in our experience push's the 6.7 beyond its limits. So I think its fair to say some of these added measures are needed to get optimal performance out of our fridges and keep our food from spoiling.
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Old 07-08-2014, 12:12 AM   #12
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I have the 5.0 cu. ft. Dometic in my 17B.
Bought a Bios indoor/outdoor wireless thermometer today and I plan to monitor it over the next week.
We'll be camping at Merritt with temps around 34 C. Today, here at home it was 23 C.
I have had the fridge plugged in to AC since yesterday. We will travel with it turned off for 4+ hours and then switch to propane at camp.
Plan to record "indoor" ( the trailer ) and "outdoor" ( the fridge ) over the next few days and will report.
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Old 07-08-2014, 12:15 AM   #13
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We live in the San Diego area and it gets very hot during the summer if you go inland very far. We want to camp all year so when it is hot we go to the coast or to higher elevations in the mountains...and every little improvement of refrigerator performance is worth it. Our refrigerator works much better after all the little tweaks we've made but we are always looking for a little bit better performance...
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Old 07-08-2014, 01:11 AM   #14
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ALL of the older Dometic fridges I had worked fine in warm weather, but the 6.7 does not. (And I give no weight to comments to the contrary from folks who have a different fridge - I believe their model works.)

In 80-90 days and 60ish nights it can keep the fridge about 50 (and the freezer cold) on setting 5 with the TX fan and a small battery fan inside it. Same results on 110 and propane.

Days in the upper 70s, nights in the low 50s it can keep the fridge at 40.

Since the freezer almost always keeps below 10 I believe removing the freezer separator would keep the fridge much cooler.

If the new fan does not improve things significantly I will remove the freezer permanently.
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Old 07-08-2014, 07:33 AM   #15
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Quote:
Originally Posted by jamman View Post
ALL of the older Dometic fridges I had worked fine in warm weather, but the 6.7 does not. (And I give no weight to comments to the contrary from folks who have a different fridge - I believe their model works.)

In 80-90 days and 60ish nights it can keep the fridge about 50 (and the freezer cold) on setting 5 with the TX fan and a small battery fan inside it. Same results on 110 and propane.

Days in the upper 70s, nights in the low 50s it can keep the fridge at 40.

Since the freezer almost always keeps below 10 I believe removing the freezer separator would keep the fridge much cooler.

If the new fan does not improve things significantly I will remove the freezer permanently.
How about drilling a couple of holes in the removable part and see if it helps by allowing some of the colder air from the freezer drop down into the refer portion. If not you could always plug the holes. I'd try 2-3 x1" holes drilled along the bottom rear, maybe 1" in from the edge to experiment. I may do this once the fan is installed and see what the impact is on both the freezer and refer with the holes drilled. In no impact I'll replug the holes.
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Old 07-08-2014, 08:49 AM   #16
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How about drilling a couple of holes in the removable part and see if it helps by allowing some of the colder air from the freezer drop down into the refer portion. If not you could always plug the holes. I'd try 2-3 x1" holes drilled along the bottom rear, maybe 1" in from the edge to experiment. I may do this once the fan is installed and see what the impact is on both the freezer and refer with the holes drilled. In no impact I'll replug the holes.
Excellent idea. I don't like drilling holes in new stuff - but I don't like inadequately designed stuff either. Anybody else want to go first?

List - for after we get back
1) Try new fan (if that is enough - GREAT)
2) Try with freezer out (to verify the system has the capacity)
3) Try holes in freezer (to have a working fridge and freezer)
(If I am first I'll probably start with 2 smaller holes and work my way up.)
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Old 07-08-2014, 10:12 AM   #17
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We have never taken the freezer out on ours. Its one of the things we really like is the size of it when on the road for a bit. I guess I am hopeful that with this fridge fix fan that all will be good.
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Old 07-08-2014, 10:28 AM   #18
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If you have fan in the fridge blowing up, I don't believe that drilling holes in the bottom of the freezer compartment will help cooling. Removing the freezer compartment helps cooling the fridge by approx. 7 degrees (4.3 refer). The main problem with absorption refers is the lack of air movement across the heat exchanger on the outside of the refer. Fans that blow up across the heat exchanger or at the top of the refer vents seems like a better strategy. Still, we cannot overcome ambient air temps or the physical limitations of the absorption type of refrigeration.
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Old 07-08-2014, 10:29 AM   #19
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re: "...anybody else want to go first..."

Not me. You go first, I'll watch. I like the idea of adding a little computer fan inside to assist cold air circulation. I have one that would work. Took apart the door light switch to investigate a potential power source. Uncovered a tiny -um- I think 4 wire connector supplying power to the door light. This looks like a good place to tap in. By the way that blue plastic shroud was really hard to snap out. Feeling very lucky I didn't break it.

But, my brief foray then suffered cold feet when it came time to cut wires for the tap-in. Red, white, black, blue---wires. ?? I don't know. Got to wait for my courage to return.
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Old 07-08-2014, 10:57 AM   #20
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Maybe the best solution is to install a single computer fan on the bottom of the freezer floor inside the refer and pull air down from the freezer into the refer section thru a round 2" hole?

Jubal,
I do not think the fridge fix fans are blowing up, they are blowing out the rear and then down across the refer fins.
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