6.7 Fridge Leaking Cold Air!!! - Page 18 - Escape Trailer Owners Community

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Old 09-02-2014, 09:00 PM   #171
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The fan, baffle, and insulation mods are interesting and may assist the heat exchange. But, IF the heat engine of the subnormal Dometic is insufficent, the refer may never be able to adequately cool above 85 degrees F.
Bob,
I feel that I am behind the eight ball with my Dometic Fridge and anything I can do to make it work better with in reason I have to give it a try.
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Old 09-02-2014, 09:24 PM   #172
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Bob,
I feel that I am behind the eight ball with my Dometic Fridge and anything I can do to make it work better with in reason I have to give it a try.
I really do admire and appreciate the inovation that members have contributed as a possible resolution to the refer cooling problems. Several strategies have resulted in increased efficency.
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Old 09-03-2014, 12:17 AM   #173
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Nice reports markvt! The visuals are excellent. Thank you.

For those who are looking for things to raise the efficiency of their 8 series (6.7 is a 8555) refrigerator check the screws in the fins holding it to the back plate units. I was moving my thermistor mount and found the screw loose. Then I checked all screws in the refrig and freezer and found some as loose as 1 + turns.

They are like a sheet metal screw, which surprised me, so my guess is the expansion and contraction is loosening them. A fine thread bolt (like I am familiar with on heat sinks) would provide a more positive mechanical connection and improved heat transfer.

Overall the 6.7 is a lovely looking refrigerator and is working like a refrigerator designed for a Climate Class SN environment. I've been told that above 77 degrees F the power should be on 5 bars. If that doesn't keep the refrigerator below 40 F then pull the freezer.

I have tested thermistors, fans, leak testing, etc. and will just hope a better solution presents itself prior to our planned trip south next year. Or we'll just look for a block of ice every few days like we did in the good old days : )
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Old 09-03-2014, 12:42 AM   #174
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.....Or we'll just look for a block of ice every few days like we did in the good old days : )
Block ice is kinda my thoughts. Crap... I've done the cooler thing for years, if I need to do the same kinda thing a month or two out of 12 months and everything else is perfect... I can do it! A refer not working like my sticks 'n brick gigantic home unit.... so what? YMMV
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Old 09-03-2014, 09:04 AM   #175
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Block ice is kinda my thoughts. Crap... I've done the cooler thing for years, if I need to do the same kinda thing a month or two out of 12 months and everything else is perfect... I can do it! A refer not working like my sticks 'n brick gigantic home unit.... so what? YMMV
That don't work for everyone. That might be Ok for someone living in the Northwest or Canada but when you live in the south hauling ice and coolers is not going to cut it. We camp 9-10 months a year. The answer is not to just carry a cooler. I have not carried a cooler since I moved up from tents to campers 20 years ago. I dont even own a cooler and dont want one. Also not everyone has room to haul coolers.

I have never had problems with fridges like this in 20 years of camping in campers where you have do mods just to try to keep the fridge cool. Yes I know its all over the forums and internet about fridge problems but half those people don't know how to use an absorption fridge anyway.

Bottom line is Dometic blew it on this 8 series. Thank goodness for Reace pushing them to get something resolved or we would be sitting here trying to fight them on a one on one basis.

I know a bit about refrigeration as I have been in the trade 40 years and worked for a company in my younger days that was a certified Dometic and Norcold dealer working on boats in So. Florida. If you can make them cool in So. Florida you can make them cool in Tennessee or Texas if they are designed to do it.

I will get off my soapbox now but when when you have pulled the fridge several times working on it, have over 50 hours invested in it, and spent a small fortune on mods trying different things because Dometic is useless for help, sometimes you get tired of being told its all good and to just carry a cooler.

Again, Thanks goodness for Reace's help!!
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Old 09-03-2014, 10:31 AM   #176
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If you have room for a soap box , you must have room for a cooler. :
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Old 09-03-2014, 11:06 AM   #177
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I agree with you Tom, the performance of these refrigerators is not 'a joke' they are simply unacceptable and many of us have spent much time and effort to try to find a solution.

My reference to going back to block ice was an attempt at sarcasm.... Surprised anyone would see it as an option. Irma is very upset with the time and money I have spent 'fooling around' with the frig. And she will not be a happy camper if Isay ' time to move the food into the ice chests Honey ' ... ' oh it's cooler now we can move it back to the frig' ... 'Whoops it's warmer then forecast let's move the food'...

Mel
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Old 09-03-2014, 01:13 PM   #178
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Quote:
Originally Posted by Donna D. View Post
Block ice is kinda my thoughts. Crap... I've done the cooler thing for years, if I need to do the same kinda thing a month or two out of 12 months and everything else is perfect... I can do it! A refer not working like my sticks 'n brick gigantic home unit.... so what? YMMV
I like donna's idea of block ice. I just bought a Yeti 45 Q to use when the ambient temperature is above 100F.

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Old 09-03-2014, 01:27 PM   #179
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Originally Posted by Kountrykamper View Post

I will get off my soapbox now but when when you have pulled the fridge several times working on it, have over 50 hours invested in it, and spent a small fortune on mods trying different things because Dometic is useless for help, sometimes you get tired of being told its all good and to just carry a cooler.

Again, Thanks goodness for Reace's help!!
Tom, I sympathize with your feelings. It is frustrating that we all have not heard any responses from Dometic corp.

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Old 09-03-2014, 01:43 PM   #180
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I've been working on thermistor modifications and received this from a company selling after market refrig 'help' parts, check out their website if interested:
--------------
Hello, Mel
What you are running into is a limitation of the cooling unit, not a problem with the controls. You can try adding a set of exhaust fans to help circulate air past the cooling unit coils. That should help in warmer weather.

Thank you, and kindest regards,

Christopher Clark
Sales and Tech. Support
Dinosaur Electronics
1160 SE 27th Street
Lincoln City, Oregon 97367
(541) 994-4344
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