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01-22-2010, 09:55 AM
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#1
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Senior Member
Join Date: Feb 2005
Location: everywhere
Posts: 428
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We don't use our rear heat pump much and when we turned it on today, the compressor came on but the fan did not. When we tried the fan only, nothing happened, so apparently the fan is the failing unit. Is there a fuse somewhere for the fan? Could the fan itself possibly have died? Any other possibilities?
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Jerry & Shirley Friedman
Dusty the Yorkie, Cricket the Shorkie
2005 38' Alpine Limited, 2004 Chevy Trailblazer
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01-22-2010, 11:15 AM
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#2
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Senior Member
Join Date: May 2003
Location: Winter Haven Brownsville, TX
Posts: 1,040
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Sometimes when the unit has not been used for while the fan seizes. I have been able to free mine by removing the AC cover and spinning the squirrel cage.
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Wayne & Kathy
05 Alpine 40FDQS #75330 Motosat F1,D2 7000S HDSL5 2004 Tundra Limited,
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01-22-2010, 11:29 AM
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#3
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Senior Member
Monaco Owners Club
Join Date: Aug 2008
Location: Lompoc CA
Posts: 135
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Alot depends on what make and modle Heat Pump you have. Here is a snip from a Duo Therm manual. -----
Duo-Therm Air Conditioners and Heat Pumps use three different capacitors:
1) compressor run capacitor 2) compressor start capacitor and 3) fan/blower capacitor. On some units the compressor run and fan/blower capacitor are in the same case.
I would suspect the fan blower capacitor.
Good luck
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Don & Carol Croner, FMCA- F401447
2007 Monaco Diplomat PDQ 40
2007 Saturn Vue, US Gear Tow Brake
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01-24-2010, 11:42 AM
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#4
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Senior Member
Join Date: Feb 2005
Location: everywhere
Posts: 428
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Quote:
Originally Posted by Wayne R
Sometimes when the unit has not been used for while the fan seizes. I have been able to free mine by removing the AC cover and spinning the squirrel cage.
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That did it! Thanks!!!
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Jerry & Shirley Friedman
Dusty the Yorkie, Cricket the Shorkie
2005 38' Alpine Limited, 2004 Chevy Trailblazer
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01-24-2010, 07:36 PM
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#5
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Senior Member
Alpine Owners Club
Join Date: May 2008
Location: Vancouver, WA
Posts: 1,719
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All, if you read the manual, it says to run the unit for a period of time each month. Also, you should cycle the slides, lower/raise the jacks, and run the genset for two hours monthly. I know all of us do those things, oh you also are supposed to clean and lube the step monthly. There is an old saying - use it or lose it, that seems to apply here as well.
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Monty & Janet - 2007 Alpine APEX 40 MDTS
S/N - 75715 - Enterprise ONE-RV Solutions
Master Certified RV Tech 
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01-25-2010, 07:48 AM
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#6
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Senior Member
Join Date: May 2003
Location: Winter Haven Brownsville, TX
Posts: 1,040
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IMHO, the problem with the AC is the fan motor shaft is of low quality steel and rusts easily. Over time the rust creeps between the shaft and motor bushing and that is what cause the fan to seize. Maybe a light coating of grease would help.
Like Old says running them frequently seems to be the best medicine.
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Wayne & Kathy
05 Alpine 40FDQS #75330 Motosat F1,D2 7000S HDSL5 2004 Tundra Limited,
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01-25-2010, 08:40 AM
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#7
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Senior Member
Monaco Owners Club
Join Date: Oct 2009
Location: Anchorage, AK
Posts: 1,194
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Quote:
Originally Posted by Wayne R
Sometimes when the unit has not been used for while the fan seizes. I have been able to free mine by removing the AC cover and spinning the squirrel cage.
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I had a similar problem one spring when I went to use the AC. It turned out to be a dead squirrel carcass, bones and fur, caught between the cage and housing. Obviously, he chose the wrong part of the cage to do his exercising in. 
Dr4Film ----- Richard.
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2002 Monaco Windsor PBT 40Ft. (R HOME) - 26Ft. 2006 Pace Trailer (R JUNK).
Trailer Has 06 VUE (R TOWD) 04 Victory Alen Ness Edition (R RYDE) & Junk.
Full-Timer 9 Yr's & Still Lov'n It. Now in Anchorage Alaska for Two Months.
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01-25-2010, 09:58 AM
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#8
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Senior Member
Join Date: May 2003
Location: Winter Haven Brownsville, TX
Posts: 1,040
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Now how did he get in there?
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Wayne & Kathy
05 Alpine 40FDQS #75330 Motosat F1,D2 7000S HDSL5 2004 Tundra Limited,
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