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07-20-2022, 07:09 PM
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#1
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Senior Member
Join Date: Jan 2019
Posts: 1,171
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PSA Air Conditioner fans explode check yours when you can.
From what I see in the forums this is an ongoing problem with roof AC units. My brother called me saying 2 of his 3 AC units quit working. COLEMAN model 47073-879. He had a mobile tech come out and told him that he needed 2 new AC because the fan blades exploded bending the condesor fins and breaking the motor mounts.
After some research I found you can replace the blade and mount and use a special tool to straighten the fins. So he's having that done not just on the 2 that failed but also the third unit. His motorhome a 2015 Winnebago Grand Tour is not that old but the plastic they use to make the fan blades and mounts degrade over time which makes them brittle.
If you do a search you'll see several post about this problem. So I guess we all need to add this to our PM schedule, to inspect the fan blades and mounts.
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07-20-2022, 07:25 PM
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#2
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Senior Member
Join Date: Jan 2013
Location: Berryville, Arkansas
Posts: 1,329
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What make and model AC do you have. A PSA needs data.
__________________
2012 Cedar Creek 36CKTS Touring Edition
2015 Ford F-350 CC DRW Lariat
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07-20-2022, 08:54 PM
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#3
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Senior Member
Join Date: Jan 2019
Posts: 1,171
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Quote:
Originally Posted by Joe_GA
What make and model AC do you have. A PSA needs data.
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Oops. They are COLEMAN model 47073-879
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07-20-2022, 09:35 PM
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#4
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Senior Member
Join Date: Jan 2013
Location: Berryville, Arkansas
Posts: 1,329
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Thanks. I recently saw one that came apart on a Carrier unit but I believe it was from 2005 camper, so it is pretty old. Also, the fan wheel is no longer available.
__________________
2012 Cedar Creek 36CKTS Touring Edition
2015 Ford F-350 CC DRW Lariat
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07-21-2022, 07:39 PM
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#5
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Senior Member
Join Date: Jan 2019
Posts: 1,171
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My brother got the bill for replacing all 3 fan blades and the mounts, it came to $1350. So not a cheap fix. And unfortunately it wasn't something he could do himself right now do to health complications.
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07-21-2022, 08:27 PM
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#6
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Senior Member
Join Date: Jan 2013
Location: Berryville, Arkansas
Posts: 1,329
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Quote:
Originally Posted by nvs4602
My brother got the bill for replacing all 3 fan blades and the mounts, it came to $1350. So not a cheap fix. And unfortunately it wasn't something he could do himself right now do to health complications.
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Wow! That is pricey!
__________________
2012 Cedar Creek 36CKTS Touring Edition
2015 Ford F-350 CC DRW Lariat
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07-22-2022, 01:02 PM
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#7
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Senior Member
Join Date: Jan 2018
Location: Raleigh, NC
Posts: 9,584
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Special tool
Quote:
Originally Posted by nvs4602
After some research I found you can replace the blade and mount and use a special tool to straighten the fins.
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That "special tool" is called a "fin comb." $10.88 on eBay,
__________________
Larry
"Everybody's RV is not like your RV."
"Always take pictures with the button on the right."
"Always bypass the water heater before opening the low-point drains."
Sticks and Bricks: Raleigh, NC
2008 Cherokee 38P: at Ivor, VA permanently
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07-23-2022, 04:11 AM
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#8
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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We had one break apart, It was due to a Mud Dauber nest built on the blades. Can't blame the manufacturer for that,
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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07-28-2022, 09:22 PM
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#9
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Senior Member
Join Date: Jan 2019
Posts: 1,171
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My brother got his motorhome back and was very happy with the work done. Now hopefully these new fans a mounts will hold up better..
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08-02-2022, 09:14 PM
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#10
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Senior Member
Join Date: Jan 2019
Posts: 1,171
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He said he can't believe how much quieter they are now. They must have been on the verge of breaking and really out of balance.
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