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08-06-2019, 02:38 PM
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#1
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Junior Member
Join Date: Aug 2019
Posts: 5
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Dash Air
I have a 2005 Winnebago 35A recently the dash air stopped working on returning from a trip. Seems that the compressor wont engage when I turn the air on,also i lost the 2 slower fan speeds. The compressor relay is good and the compressor works when I jump it out. High and low pressure switches are working and I just replaced the fan motor regulator which gave me back the slower fan speeds but the compressor still wont engage.
Any thoughts??
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08-06-2019, 02:47 PM
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#2
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Senior Member
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Jan 2011
Location: Prospect, KY
Posts: 1,797
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if the AC fluid is low the compressor will not kick on
__________________
Kevan & Rebecca(BTW) 2009 Fleetwood PaceArrow 38P 8.1 on W24 chassis w/air bags, 1990 Goldwing 1500, 2010 Jeep Liberty, RVM#197, FMCA#F413587, FMA#7985, WCMC, 2 dogs Cody and Sadie
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08-06-2019, 03:16 PM
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#3
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Junior Member
Join Date: Aug 2019
Posts: 5
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Quote:
Originally Posted by PappaBull
if the AC fluid is low the compressor will not kick on
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Freon pressure is fine was fine when I jumped the compressor.
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08-06-2019, 03:28 PM
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#4
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Senior Member
Fleetwood Owners Club Workhorse Chassis Owner
Join Date: Jan 2011
Location: Prospect, KY
Posts: 1,797
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my F53 ford had a temp. probe attached to the metal coolant line, not sure if high or low pressure, that shut the compressor down if the line started to freeze up. problem was the switch the probe controlled keep sticking. hope this helps and good luck
__________________
Kevan & Rebecca(BTW) 2009 Fleetwood PaceArrow 38P 8.1 on W24 chassis w/air bags, 1990 Goldwing 1500, 2010 Jeep Liberty, RVM#197, FMCA#F413587, FMA#7985, WCMC, 2 dogs Cody and Sadie
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08-06-2019, 03:40 PM
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#5
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Senior Member
Join Date: Aug 2012
Posts: 412
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__________________
2023 Grand Design Trancend Xplor 240ML
2004 Phoenix Cruiser 2551
2014 Winnebago Vista 31KE
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08-06-2019, 06:01 PM
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#6
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Senior Member
Tiffin Owners Club
Join Date: Mar 2015
Location: Southern NM
Posts: 2,514
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Quote:
Originally Posted by Bobbyrv
Freon pressure is fine was fine when I jumped the compressor.
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How do you know the pressures were good, did you have a gauge set on? What were the pressures?
When you "Jump" your compressor you are bypassing the low pressure switch which protects your AC compressor for lack of lubrication via the refrigerant.
__________________
2005 Tiffin Allegro Bay 37DB
W22 Workhorse Chassis 8.1 Flat Towing a 82 Jeep CJ7
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08-07-2019, 05:13 AM
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#7
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Senior Member
Join Date: Jul 2018
Location: NC
Posts: 234
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Quote:
Originally Posted by CJ7365
How do you know the pressures were good, did you have a gauge set on? What were the pressures?
When you "Jump" your compressor you are bypassing the low pressure switch which protects your AC compressor for lack of lubrication via the refrigerant.
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I believe your static (compressor off) low pressure has to be at least 22lb. before the compressor clutch will engage.
__________________
2004 Monaco Lapalma PDT W-22, 8.1
FSE Industrial Ceramic Kilns.
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08-07-2019, 01:55 PM
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#8
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Senior Member
Winnebago Owners Club
Join Date: Sep 2009
Location: MILTON FL
Posts: 113
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put a set of gauges on it to really diag. it ,,dont jump around components to diag.
__________________
2002 adventurer,, live in Milton Fl .2013 Honda Crosstour toad .. 18 grand children 3 grt grand children
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08-08-2019, 05:32 AM
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#9
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Senior Member
Join Date: Jul 2018
Location: NC
Posts: 234
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Quote:
Originally Posted by tboss619
put a set of gauges on it to really diag. it ,,dont jump around components to diag.
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YES,yes & yes
__________________
2004 Monaco Lapalma PDT W-22, 8.1
FSE Industrial Ceramic Kilns.
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08-10-2019, 01:14 PM
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#10
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Member
Join Date: Sep 2013
Location: Labrador City, NL, Canada
Posts: 51
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I had a similar problem with my 2005 Itasca. It turned out to be two wires chafed off across the top of the radiator. You may have to trace the wire which supplies power to the compressor clutch back to it source and see it there is 12v + at that point. Then check the continuity of the wire.
__________________
Bill & Sandra, 2005 Itasca Suncruiser 38J, W24, 8.1GM, Banks Power Pack System, Koni FSDs, Blue Ox, Brake Buddy, Toad 2003 Chev Tracker.
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Linear Mode
