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03-25-2014, 04:48 PM
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#1
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Seasoned Camper
Join Date: Jun 2013
Location: vine grove
Posts: 80
M.O.C. #13517
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AC Problems
OK People, talk to me! AC works on hot day, then the inside of ceiling sweats and I have water drops where the 15k is at. Now we have the Quit Cool system. Montana 3582RL 2012. See the youtube. Keep in mine in this video, this is not my rig. But I'm going to check it all out!!!!!!! Talk to me!
Retired US Army
M1 Abrams Tank Maintenance Supervisor
I have moved this post to this topic rather than "New Members Corner"
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03-25-2014, 07:15 PM
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#2
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Montana Fan
Join Date: Dec 2013
Location: Renton
Posts: 362
M.O.C. #13959
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Just a few thoughts. How is the airflow from the vents and can you feel a suction on the return? Have you checked under the AC cover to confirm it's clean and clear of derbis? Is this a new issue, or has it been this way from the start?
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03-26-2014, 03:53 AM
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#3
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Montana Master
Join Date: Jan 2013
Location: Depends on temps
Posts: 1,648
M.O.C. #13157
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I had a SOB with the same problem. The fix was to increase return air flow. Using what I learned back in 2001 I looked at my '14 return air.
On my '14 3150RL the rear A/C return ducts are 2 small areas on the edge of the ceiling. Remove grills, duct is a foam type of material.
I used (this is from memory) 1 1/2" plastic conduit, cut 6" long. Made 4 pieces. I placed them in the return air ducts in the outer edges to prop the return open. Mine were almost sucked flat causing a restriction.
It will make sense once you pull the return grills off.
The return air filters, I bought window A/C replacement filters. You can get 4 pieces out of a sheet. About $2 @ Lowes. I use 2 pieces per grill for better filtering.
Jim
__________________
2012 Ram Laramie 3500 DRW 4x4 3.73 Tow Max Pkg B&W Companion 60 gal RDS aux fuel tank. 2014 Montana 3150RL, 2 A/C's, Leather, 6 Point Jacks, Splendede WD2100XC, Mor/ryde X-Factor, Duravis 250 tires with TST 507RV monitors. 2 x Honda EU2000's
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03-26-2014, 05:18 AM
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#4
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Montana Master
Join Date: Oct 2012
Location: Chilliwack
Posts: 1,520
M.O.C. #12935
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This seems to be a fairly common problem and has been discussed here in past posts.
Picture of my intake vents on this thread and what was done to improve but not "fix" the problem entirely. Cheap, poor construction and workmanship involved.
http://www.montanaowners.com/forums/...C,intake,vents
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03-26-2014, 09:44 AM
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#5
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Montana Master
Join Date: May 2011
Location: Fayetteville
Posts: 4,200
M.O.C. #11401
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Make sure the AC drain is clear. If humidity is high run AC fan on high.
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03-31-2014, 05:57 PM
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#6
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Seasoned Camper
Join Date: Jun 2013
Location: vine grove
Posts: 80
M.O.C. #13517
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Thanks good info. In about a week or so I'm going to take pictures and make phone calls. Get back with you later
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03-31-2014, 07:13 PM
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#7
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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I'd take Larry's advice first. It sounds like a drain problem first and an air flow problem second. The air flow problem can be caused by ductwork like in the video or by ice forming on the fins due to low air flow and high humidity. In some parts of the country and/or in certain situations the AC fan must be set to run on high and, at times, be set to run all the time in order to keep the ice from forming.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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03-31-2014, 07:55 PM
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#8
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Montana Master
Join Date: Mar 2012
Location: Redding
Posts: 1,421
M.O.C. #12339
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Dick is correct. Where I live in Northern California the extreme dry heat causes Ice issues. We must run fan on high 24/7 or the units freeze up. Second RV with same issues. Had ice fall out of the air unit onto floor. Thought we sprang a leak!
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05-06-2015, 08:37 AM
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#9
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Seasoned Camper
Join Date: Jun 2013
Location: vine grove
Posts: 80
M.O.C. #13517
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Keystone repaired my AC problem. Now it will blow the hat off of your head. Thank you Keystone
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05-06-2015, 10:10 AM
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#10
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Montana Master
Join Date: Jun 2010
Location: Colorado Springs
Posts: 3,335
M.O.C. #10496
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Quote:
quote:Originally posted by barryn
Keystone repaired my AC problem. Now it will blow the hat off of your head. Thank you Keystone
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What did they do
__________________
2010 3150RL
LevelUp, Dual 6 volt batteries, Progressive Industries EMS HW50C, Honda EU2000i Generator, Bridgestone Duravis R250 tires, Torklift Glowstep Revolution Stairs, LED Tail lights
2015 RAM 3500 Laramie SRW LB CC Cummins 6.7L Aisin Trans B&W RVK3600
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05-06-2015, 10:32 AM
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#11
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Montana Master
Join Date: Feb 2004
Location: Pahrump
Posts: 2,523
M.O.C. #1081
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Tell us what they did so we can all benefit if needed.
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05-07-2015, 01:07 AM
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#12
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Montana Master
Join Date: May 2011
Location: Hixson
Posts: 3,436
M.O.C. #11397
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Shhhhhhhhhhhhhh it's a secret !
__________________
2018.5 Montana 3791RD
Full Timers 9/1/2010 through 1/16/2020.
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05-07-2015, 01:20 PM
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#13
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Seasoned Camper
Join Date: Jun 2013
Location: vine grove
Posts: 80
M.O.C. #13517
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To make a long story short. I called about a 10 RV dealers to see if they could and/or have repaired an AC problem like ours....from the top of this page our AC works on hot day, then the inside of ceiling sweats and I have water drops where the 15k is at. Now we have the Quit Cool system. Montana 3582RL 2012. See the youtube. Keep in mine in this video, this is NOT my rig. But I'm going to check it all out!! And we did, we had the same problem!!!!!!!!!!!! so we found a Keystone Dealer in Lexington, KY called Northside RV and they said that they could fix it and they did. It took 16 hours and the repair was done. Keystone only paid for 8 hours. To repair the AC return duct they had to take the inside ceiling panel down and make a return duct and reinstall the ceiling panel. And I'm telling you this was complex.
This AC is like New now, lots of air flow
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