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05-05-2013, 08:51 PM
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#1
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Senior Member
Join Date: Jul 2011
Posts: 144
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AC start up Question
I was running on Generator power and turned on the AC's today for the first time this season. They just hummed and no air coming out so I quickly turned it off. Any ideas? Shall I try it again with shore power or maybe leaving it on and mumming longer in hopes that the humming will lead to the AC starting up? Please let me know what you think.
John
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John; Karen and "Willow" (the RV cat)
2005 National Seabreeze 1341 F53 V10
2008 Malibu toad " Life is not a Spectator Sport!"
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05-05-2013, 08:54 PM
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#2
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Senior Member
Join Date: Nov 2007
Posts: 190
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no ac start
john, it could be a starting capacitor bad, or it could just be a stuck fan. You may have to take the cover off the unit and try to turn it by hand. Sometimes they just rust a little and are temporarily stuck. Good luck with it. Steve
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07 Tiffin Allegro Bus 42QRP
08 Dodge Dakota toad
Sea eagle 10.6 inflatable
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05-06-2013, 07:23 AM
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#3
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Senior Member
National RV Owners Club Workhorse Chassis Owner
Join Date: Aug 2010
Location: Portland, Oregon
Posts: 872
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Mine did that this week, it was fine two weeks ago. I went on top to remove the cover and spin the fan blade, but did not have a square drive screw driver.. So I took a stick, put it trough the vent hole and moved the fan blade just a little, went down, turned the thermostat and it worked fine. Just moving the fan blade gets it going.. Someone recommended a drop of Bar & Chain oil on the fan shaft, Thats on my "to do" list.
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2004 National Sea Breeze LX8375, Towing a 2012 Liberty.
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05-06-2013, 07:41 AM
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#4
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: Mar 2012
Location: Weston, Fl.
Posts: 916
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Take the cover off the unit and spin the fan motor by hand. Hopefully it is free. Look for mud daubers or other things that could interfere with the fan. This should get you going... Don't keep trying to start the system until you insure the fan is free..
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2003 Newmar Kountry Star 3905, Freightliner XC chassis with CAT 330. Winnie the black lab, pretty Airbus captain wife, retired airline pilot with 11 grandkids. UH-1 pilot (Huey) U.S. Army 1967-1983. RVN 68-69. Northern Idaho my summer home.
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05-06-2013, 05:07 PM
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#5
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Senior Member
Join Date: Jul 2011
Posts: 144
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Thanks for the suggestions guys , I will give it a try.
__________________
John; Karen and "Willow" (the RV cat)
2005 National Seabreeze 1341 F53 V10
2008 Malibu toad " Life is not a Spectator Sport!"
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05-06-2013, 05:51 PM
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#6
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Senior Member
Join Date: Jul 2012
Location: Fulltime, USA
Posts: 16,706
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Got stink bugs? Friend had same symptoms. AC motor was jammed full of them.
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05-07-2013, 10:07 PM
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#7
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Senior Member
Join Date: Jul 2011
Posts: 144
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Thanks guys. Taking the cover off and giving the fan a spin did the trick. This forum rocks !
__________________
John; Karen and "Willow" (the RV cat)
2005 National Seabreeze 1341 F53 V10
2008 Malibu toad " Life is not a Spectator Sport!"
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05-07-2013, 11:14 PM
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#8
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Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Aug 2002
Location: Clovis, CA, USA
Posts: 13,103
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I have one A/C that does this same thing about once every two years.
I get up on the roof, pull the cover and put a little bit of oil on the shaft. I also exercise it more during the winter now. It likes to be run every now and then.
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2004 Monaco La Palma 36DBD, W22, 8.1, 7.1 MPG
2000 LEXUS RX300 FWD 22MPG 4020 LBS
Criticism is easier than Craftsmanship
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