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Old 08-23-2012, 11:12 PM   #21
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Old 08-23-2012, 11:57 PM   #22
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Old 08-24-2012, 10:45 AM   #23
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Keep in mind " 140 cu M/H=82 cu ft/hr". To reach this flow existing units are 4,200 RPM! Speed ~ noise! to reduce speed, diameter must increase dramatically- no space. Increase pitch, more noise. Increase efficiency more costs...
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Old 08-26-2012, 04:59 PM   #24
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Vince I believe your are correct.Before I connected those other two non OE replacements,I put them straight to a 12volt battery,put the wife's hair dryer on the sensor pigtail,and noted their increase in rpm as the temperature rose.However they never approached anywhere near the rpm thus cfm that the original Sunon's did.And at least in the fifth wheel (Crusader) setup their is limited space for these fans.I purchased 2 for $30.00 online from Digikey.
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Old 08-27-2012, 11:50 AM   #25
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Hi, I found out that Dometic knows about the issue and VERY quietly has an upgrade fan package that they can supply to the dealer for the Fridge. I just had mine done under warrranty. Push your dealer on this. N/C for the warranty work.
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Old 08-27-2012, 04:32 PM   #26
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Here is a standard typical answer.

UPDATE
Email reply from Dometic
John,
The fans will have some sound to them, if they are bothersome you can have the unit in to be service dealer for inspection.
To find a service dealer in your area please give us a call 800 544 4881 or visit rv.com

Thanks
Bridget

We appreciate this opportunity to address your situation, and hope all your future travels are trouble free. Please do not hesitate to contact us any time, to order parts or if we can be of assistance.

Customer Support Center
800 544 4881
RV.Com / DometicUSA.com
Dometic LLC

MY Original EMAIL TO DOMETIC
To Whom it may concern,
I just purchased a new 2012 Forest River Georgetown motorhome and I have had it out on a few trips and the refrigerator goes into some type of cooling cycle 2 fans start turning.
These fans are in the back compartment and is very noisy. They are so noisy they actually can wake you up at night.
What can be done to quiet these fans?

I have register my refrigerator online and the unit is still under warranty.
Dometic 4 door , Model RM1350 WIMSSX SN XXXXXXX
RV Purchased new April 2012
Please let me know what can be done.
Thank you very much and looking forward in hearing from you

John
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Old 09-17-2012, 11:02 PM   #27
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Dometic 1350 Update

Today I picked up my Georgetown 378 and started the reefer at 9AM. After only 5 hours the freezer was down to teens, refrig portion was down to 37 F. The condenser fans never ran the entire time. I had my first batch of ice cubes an hour later. Just goes to prove when the ambients are in the mid 70 degree range the box performs quite well. Just a few weeks ago it was in the 90's and the unit wheezed until sundown, temps in the upper 40's at times.
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Old 09-17-2012, 11:13 PM   #28
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Quote:
Originally Posted by VinceU View Post
Today I picked up my Georgetown 378 and started the reefer at 9AM. After only 5 hours the freezer was down to teens, refrig portion was down to 37 F. The condenser fans never ran the entire time. I had my first batch of ice cubes an hour later. Just goes to prove when the ambients are in the mid 70 degree range the box performs quite well. Just a few weeks ago it was in the 90's and the unit wheezed until sundown, temps in the upper 40's at times.
Same thing holds true with the RV air conditioner not cooling enought problems we see here in the summer. You can reasonably expect to see about a 20 degree difference between the inside and outside tenperature when your a/c is performing at its optium.
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Old 09-18-2012, 01:01 AM   #29
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I and several others have changed fans and eliminated the problem. Look for the cooling fan under the coil behind the top vent opening. If it's a whining Sunon cheapo fan, you have found the problem!

Old Sunon fan in top pic was replaced by 2 new Gelid thermo controlled fans in the bottom pic. Silence is golden! This was done back in the spring and has worked great! The 2 new fans move more air and draw less current than the noisy original.
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Old 09-18-2012, 07:06 AM   #30
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