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Old 01-18-2008, 10:38 PM   #15
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Hey Gang,

Mind if I join this party? I have the same 4 cu. ft. Dometic in my CCD. According to Dometic, it only has to be level so that the trailer is 'comfortable to walk in' which amounts to 1/2 bubble if you're into levels.

The older units with the square boiler sections had critical leveling requirements because the drop in the tubing did not allow proper coolant flow in any slighty out-of-level conditions.

Another problem you may be experiencing is condenser overheating. Airflow in the back of the fridge is CRITICAL to proper operation of the cooling unit. If the condenser gets too hot, your fridge will not get much below 50*. The solution is either a Snyder's fan kit (very efficient and thermostatically controlled) or a fan blowing up from the bottom vent and one blowing out from the top vent (on your 19'). Also, the absorber coils should be no more than 1-1/2" from the side wall to create proper air flow. You might check this distance to assure that the 'chimney effect' is working.

I have run mine at the 1/2 bubble position wih no problems! Check your venting.
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Old 01-19-2008, 03:55 PM   #16
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Hey Lewster,

I honestly don't know what was/wasn't wrong with the frig. I know you are techy in nature so here is as much technical info as I can give. This is the very first issue of any sort with the frig as it has worked flawlessly for 2 yrs.

But, after 9 days at this same campsite without moving (and I mean not moving - Shari hates any movement so stablizers are cranked down hard) anyway, after 9 days, running on electric, the frig stopped cooling. But at the same time the fins at the top rear of frig were "hot" and the fan (factory standard) was running away so everything was looking as normal. It was around 80 each day and high humidity. Now, I will also admit that the curb side (rear of frig) of the trailer was maybe, maybe, 2 inches high. By putting a 2x6 under the street side I came up exact level.

When I put the block under the street side tire I rocked the trailer side to side as much as I could, and went up/down on the jack. Literally within an hour everything is back to normal.

So, IMHO, something slowly plugged up over the course of 9 days enough to plug up a line. It wasn't as if the frig had shutdown or anything, it was trying to cool, but just not cooling.

So, I think it gradually built up in one of the lines and and then plugged it shut so even though it was trying to cool, it could not cool.

That was 6 days ago now and frig is just fine ever since so......

My thinking is that is you have a Dometic and are staying for more than 1 week in the same spot pay extra attention to exact levelling. That is what I will do from now on, and I will advise if any further issues.

Even with that being said, I do plan on installing one of the Snyder frig fan kit deals one of these days, but that is my second fan priority as the frig fan is not that noisy or bothersome. My first absolute priority is to get rid of the range hood vent fan as it just drives me crazy....

best regards, Dave
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Old 01-20-2008, 08:13 AM   #17
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Quote:
Originally Posted by wagnerda
Hey Lewster,

I honestly don't know what was/wasn't wrong with the frig. I know you are techy in nature so here is as much technical info as I can give. This is the very first issue of any sort with the frig as it has worked flawlessly for 2 yrs.

But, after 9 days at this same campsite without moving (and I mean not moving - Shari hates any movement so stablizers are cranked down hard) anyway, after 9 days, running on electric, the frig stopped cooling. But at the same time the fins at the top rear of frig were "hot" and the fan (factory standard) was running away so everything was looking as normal. It was around 80 each day and high humidity. Now, I will also admit that the curb side (rear of frig) of the trailer was maybe, maybe, 2 inches high. By putting a 2x6 under the street side I came up exact level.

When I put the block under the street side tire I rocked the trailer side to side as much as I could, and went up/down on the jack. Literally within an hour everything is back to normal.

So, IMHO, something slowly plugged up over the course of 9 days enough to plug up a line. It wasn't as if the frig had shutdown or anything, it was trying to cool, but just not cooling.

So, I think it gradually built up in one of the lines and and then plugged it shut so even though it was trying to cool, it could not cool.

That was 6 days ago now and frig is just fine ever since so......

My thinking is that is you have a Dometic and are staying for more than 1 week in the same spot pay extra attention to exact levelling. That is what I will do from now on, and I will advise if any further issues.

Even with that being said, I do plan on installing one of the Snyder frig fan kit deals one of these days, but that is my second fan priority as the frig fan is not that noisy or bothersome. My first absolute priority is to get rid of the range hood vent fan as it just drives me crazy....

best regards, Dave
Hey Dave,

Smacked your head a few times on the range hood....have ya? Me too!!

It sounds like you hit the nail on the head with the blockage thing. You got it just in time. The temps on the cooling unit should be evenly warm across the whole unit. would think that your condenser was hot and the rest of the unit was much cooler. It should also mix up a little when you are driving......
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Old 01-20-2008, 08:25 AM   #18
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Lew, that's yet another reason to keep camping. If anyone wants, I can snap a photo of the 12v computer fan I put in the back of the fridge compartment. It doesn't blow directly on the coils, but rather helps create a draft up and out, enhancing the natural convection process.
Many of the newer coaches have this fan installed at the factory, with a switch by the door.
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Old 01-20-2008, 05:00 PM   #19
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Quote:
Originally Posted by overlander63
Lew, that's yet another reason to keep camping. If anyone wants, I can snap a photo of the 12v computer fan I put in the back of the fridge compartment. It doesn't blow directly on the coils, but rather helps create a draft up and out, enhancing the natural convection process.
Many of the newer coaches have this fan installed at the factory, with a switch by the door.
Hey Terry,

I had that fan with the switch on my 19CCD. Unfortunately, it was in the wrong place and was blowing IN.....not OUT! If you are using the independent fan method you really need one at the bottom of the fridge or underneath the condenser....and another blowing OUT at the top vent. I discussed this probem at length at Dometic, and they ae now using 2 cooling fans on their newer large fridge units. FWIW, the Snyder's kit really seems to do the job.
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