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Old 06-20-2010, 05:37 AM   #11
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Thats the email I got right from Dometic, Me I dont like the fridge getting above 40, I think its a P.O.S and they need to design something better. The other Hotor homes and %th wheels never had an issue. Oh well I hope the mod you did corrects the problem and if so I will be putting some extra fans on mine.
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Old 06-20-2010, 11:02 AM   #12
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So far 2 days running and the fridge is holding at 36 degrees on propane. I reduced the thermostat setting from 3 to 2 last night as it has been realatively cool for spring around here and the fridge is empty(high temps around 55 most of the time) and it rose to 37 degrees, no problem there. There is a chance of 70 degree weather this next week (I'll believe it when I see it) which means my garage could hit 75 to 80 inside and that will be a better test of how the modifications work. However I really would like to see some direct sunlight on that side of the rig and 80 degree weather to really see what happens. Keping my fingers crossed.
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Old 06-21-2010, 01:13 AM   #13
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Question:

You mentioned the fan noise. Which position do you think produces the most noise inside your coach? The fans attached to the rear metal panel on the refrigerator, or the ones you attached to the roof vent?

My guess is the ones attached to the back of the unit, but I would like to know your your first hand perspective.
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Old 06-21-2010, 08:44 AM   #14
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Quote:
Originally Posted by NWJeeper View Post
So far 2 days running and the fridge is holding at 36 degrees on propane. I reduced the thermostat setting from 3 to 2 last night as it has been realatively cool for spring around here and the fridge is empty(high temps around 55 most of the time) and it rose to 37 degrees, no problem there. There is a chance of 70 degree weather this next week (I'll believe it when I see it) which means my garage could hit 75 to 80 inside and that will be a better test of how the modifications work. However I really would like to see some direct sunlight on that side of the rig and 80 degree weather to really see what happens. Keping my fingers crossed.
I think you still have one problem with your fridge. After all the work you've done there's no cold beer in there. Add at least 12 beers, preferable cold already. Make that add 11 beers, open the other and enjoy. Allow the other beers a hour or two to get acquainted with the fridge then take out one, drink slowly and compare it with the first. This may require repeated testing just to be sure you have accurate information.

Sound like you've solved the problem. Hopefully the weather will cooperate so you can get the sun directly on that side. Charlie
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Old 06-21-2010, 10:55 AM   #15
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I've installed a fan like you did and I think your fridge will run more efficiently with the modifications but you mentioned your fridge would just quit cooling at times. I would think even with poor venting you would still have some cooling and it wouldn't just stop unless there is some mechanism that tries to prevent overheating.
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Old 06-21-2010, 01:08 PM   #16
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Quote:
Originally Posted by red.jimbo View Post
Question:

You mentioned the fan noise. Which position do you think produces the most noise inside your coach? The fans attached to the rear metal panel on the refrigerator, or the ones you attached to the roof vent?

My guess is the ones attached to the back of the unit, but I would like to know your your first hand perspective.
Jim, The original fans on the back of the refrigerator don't make that much noise and are hardly noticeable from inside the rig. However in my estimation they are probably about 30CFM fans and are turning at a lower RPM.

The fans I installed on the roof vent are each 107CFM so I am guessing about 3 times more powerful than each factory fan. Add to that the fact I dropped one and made it off balance and it is really noticable inside the rig, louder than the water pump but not as loud as the furnace. I will be disabling the bad one and will see what the noise level is like on the remaining one and report back when I have tested it.

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Originally Posted by cfsoistman View Post
I think you still have one problem with your fridge. After all the work you've done there's no cold beer in there. Add at least 12 beers, preferable cold already. Make that add 11 beers, open the other and enjoy. Allow the other beers a hour or two to get acquainted with the fridge then take out one, drink slowly and compare it with the first. This may require repeated testing just to be sure you have accurate information.
Funny you should mention it Charlie as I just had the wife load the fridge up with beers this morning to test it under a "load"

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Originally Posted by ronhanson View Post
I've installed a fan like you did and I think your fridge will run more efficiently with the modifications but you mentioned your fridge would just quit cooling at times. I would think even with poor venting you would still have some cooling and it wouldn't just stop unless there is some mechanism that tries to prevent overheating.
Yeah Ron I know, doesn't make sense and I can't rule out an actual problem with the fridge still, like maybe the control board but Dometic was not willing to continue to search for other issues until the venting was taken care of. I still have until September until my 2 year parts & labor portion of the warranty runs out with Dometic so if there is something else wrong I hope it shows itself before then.
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Old 06-24-2010, 10:49 AM   #17
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Question re: start/stop driving affects.

According to the Dometic refrigerator manual (see quote below) the refrigerator
will stop for 15 minutes when you shut off your engine. I suspect this could
affect the cooling, especially if your doing a lot of stop/start sight seeing.

However my question is should your refrigerator start-up immediately when
you restart the engine ? anyone know (My MH is in storage)

“Temporary gas lockout:
The gas operation will automatically be locked out for a period
of 15 minutes when the engine is switched off. This will prevent
gas operation e.g. when stopping at a refueling station.”

Also there is a article on refrigerator venting on the following site
which explains some of the issues.

Venting
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Old 06-24-2010, 01:39 PM   #18
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Mbtelguy, You are correct, it does disable the gas flame when the ignition is turned off so that you don't forget at a gas station when refueling. It was my understanding though that if you force the fridge to run on LP (take it off of "auto" mode) that this will not happen. In really hot climates you might not want it turning off all the time if you are turning the ignition on and off a lot.

Thanks for the link, I will check it out. Their page seems to be having problems loading this morning for some reason. Will try later.
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Old 06-26-2010, 09:11 PM   #19
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Well I installed the fans today going to do the tape work later, turned it on so we will see if it fixes the problems, suppose to be near 100 the rest of the week, will let you know the results,

Ok went out today and finished the job, I went and got the pool noodles and aluminum tape and filled the void on top of the fridge, its 98 drgrees and the fridge is hold at 36, I hope this fixed the issue,Thanks jeeper for all your contributions, I know you have help me a few time on issues.
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Old 06-28-2010, 04:46 PM   #20
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Ok day 3 with the new fans, its been about 100 degrees here every day, yesterday it went into defrost mode and went to 40, this morning it was back at 35, so I for 1 am glad i added the new fans on top,
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