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07-01-2015, 08:03 PM
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#15
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Member
Join Date: Jun 2013
Location: Naples, Florida
Posts: 51
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I had three new Mach 8 15,000 BTU units installed in Naples, Florida in March, 2015. My units were shipped with the new 3 blade fans. All fans were manufactured on 4/12/2014. All had the "B" part number designation. (1472B504). The first total fan failure was in early June on the rear unit. The second one happened today on the forward unit. I have replaced both with fans designated with part numbers 1472D504.
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07-22-2015, 08:29 AM
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#16
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Senior Member
Entegra Owners Club
Join Date: Oct 2012
Posts: 3,915
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Front B broke. Didn't damage anything else, though. Just replaced all three. Have AC again!  
__________________
Lynn & (Dan in spirit  ) Fur kids Carl & Alvin
Full time - home base is Myakka River Motorcoach Resort in Port Charlotte, FL
2015 Entegra Anthem 44B with HWH Active Air
2021 Grand Cherokee Summit
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07-22-2015, 09:17 AM
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#17
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Senior Member
Entegra Owners Club
Join Date: Feb 2013
Location: Circleville, OH
Posts: 442
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Front blade broke and damaged freon line, dealer replacing complete unit. Fan had the letter A.
__________________
Ike, & Dianne
2014 Anthem, 2015 Cornerstone 2016 Cornerstone
2019 Cornerstone, 24' Stacker to match.
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07-22-2015, 02:48 PM
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#18
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Senior Member
Entegra Owners Club
Join Date: Apr 2011
Location: Estero, FL
Posts: 2,515
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Quote:
Originally Posted by Stanmawyer
I had three new Mach 8 15,000 BTU units installed in Naples, Florida in March, 2015. My units were shipped with the new 3 blade fans. All fans were manufactured on 4/12/2014. All had the "B" part number designation. (1472B504). The first total fan failure was in early June on the rear unit. The second one happened today on the forward unit. I have replaced both with fans designated with part numbers 1472D504.
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Both!? Why not the third one! At this point you look like a marked man! I would replace the third one before it breaks and causes real damage!
__________________
Gary & Leigh
2019 Entegra Cornerstone 45Y,
2010 Seneca, 2011 & 2014 Anthem, 2017, 2018 Cornerstone(All Sold)
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07-25-2015, 04:58 PM
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#19
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Member
Entegra Owners Club
Join Date: Oct 2014
Location: Wellington, FL
Posts: 94
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Front A/C stopped working last week. Broken Fan Blade. Coleman sent replacements for all three units. Installed on two good units and waiting on new unit for front. On inspection of two other blades taken out of mid and rear I noticed hairline cracks in all of them on most the blades. It's not an issue of if it will happen it's when?
__________________
Gary
2015 Entegra Cornerstone 45K
Wellington, Florida
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07-25-2015, 05:12 PM
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#20
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Senior Member
Entegra Owners Club
Join Date: Nov 2012
Posts: 8,149
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Gary, which model blades did you have? (A,B,C,D)
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Marc and Jill, Wellington FL
2013 Entegra Anthem 44SL
2018 Lincoln MKX
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11-20-2015, 02:40 PM
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#21
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Junior Member
Join Date: Nov 2015
Posts: 4
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cracked 1472b504 fan blade
My heatpump started a noisy vibration. Found it to be the 1472b504 fan blade had cracks in it.
Called the phone number in this thread for airxcel customer service.
They took the model and serial number, my info and said they would send one to me.
Thanks all for the help!!
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11-20-2015, 02:49 PM
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#22
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Senior Member
Entegra Owners Club
Join Date: Oct 2012
Posts: 3,915
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Quote:
Originally Posted by jastarn50
My heatpump started a noisy vibration. Found it to be the 1472b504 fan blade had cracks in it.
Called the phone number in this thread for airxcel customer service.
They took the model and serial number, my info and said they would send one to me.
Thanks all for the help!!
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Have them send you all three .... replace them all!
__________________
Lynn & (Dan in spirit ) Fur kids Carl & Alvin
Full time - home base is Myakka River Motorcoach Resort in Port Charlotte, FL
2015 Entegra Anthem 44B with HWH Active Air
2021 Grand Cherokee Summit
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11-23-2015, 04:14 PM
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#23
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Junior Member
Join Date: Nov 2015
Posts: 4
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I only have 1 of these fan blades. The inside blower is a squirrel cage type that I don't want to bother if it gives no trouble. My front heat pump is a different model with different fan blades.
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02-10-2016, 02:32 PM
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#24
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Senior Member
Entegra Owners Club
Join Date: Jun 2012
Location: The Villages FL/Traverse City MI
Posts: 875
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Add another to the list. A few nights ago the #3 unit started up and it sounded like a helicopter was tying to land on top of our coach. Got it shut down quickly - inspection the next day showed a large crack in the hub at the base of one of the blades but no other damage. All 3 units had B fans. Entegra got Airxcel to ship 3 D versions and will pay to have them installed by a mobile tech who's scheduled to work on our AquaHot next week.
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Ron & Glenda (The Good Witch!)
2015 Entegra Anthem 42DEQ
2014 Grand Cherokee toad
(Posted via iOS App)
__________________
Ron & Glenda (The Good Witch!)
2015 Entegra Anthem 42DEQ Classic
2020 Chevrolet Traverse toad
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02-10-2016, 02:49 PM
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#25
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Senior Member
Join Date: Jan 2014
Posts: 4,669
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I assume they named this Mach 8 due to the fact these things sound like a space shuttle taking off even when they arnt cracked. I don't miss them a bit on my new coach with its old school "plus sized" AC units
__________________
2023 Winnebago Travato
2023 Airstream Flying Cloud BH 30'
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02-11-2016, 06:13 AM
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#26
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Senior Member
Entegra Owners Club
Join Date: Oct 2010
Location: East Greenwich, RI
Posts: 2,305
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Quote:
Originally Posted by rbr
Add another to the list. A few nights ago the #3 unit started up and it sounded like a helicopter was tying to land on top of our coach. Got it shut down quickly - inspection the next day showed a large crack in the hub at the base of one of the blades but no other damage. All 3 units had B fans. Entegra got Airxcel to ship 3 D versions and will pay to have them installed by a mobile tech who's scheduled to work on our AquaHot next week.
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Ron & Glenda (The Good Witch!)
2015 Entegra Anthem 42DEQ
2014 Grand Cherokee toad
(Posted via iOS App)
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Thanks for the update! About what time of year was your coach delivered? Friends with a 2015 delivered in May had C fans. Guess there are still a number of the defective B and C fans out there. My D fans have been installed for 14 months now and are holding up well.
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02-11-2016, 06:25 AM
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#27
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Senior Member
Entegra Owners Club
Join Date: Oct 2010
Location: East Greenwich, RI
Posts: 2,305
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Quote:
Originally Posted by jondrew
I assume they named this Mach 8 due to the fact these things sound like a space shuttle taking off even when they arnt cracked. I don't miss them a bit on my new coach with its old school "plus sized" AC units
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Yeah does seem appropriate for the early units with the six blade A fans. The change to the 3 blade fans quieted things down significantly for most of us. Talked to the Airxcel rep at the Tampa show about it and he claimed they were also looking at making changes to the shroud grill to reduce the noise even further.
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02-15-2016, 11:14 AM
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#28
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Senior Member
Entegra Owners Club
Join Date: Jun 2012
Location: The Villages FL/Traverse City MI
Posts: 875
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Quote:
Originally Posted by voltdoc
Thanks for the update! About what time of year was your coach delivered? Friends with a 2015 delivered in May had C fans. Guess there are still a number of the defective B and C fans out there. My D fans have been installed for 14 months now and are holding up well.
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Coach was built in November '14
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Ron & Glenda (The Good Witch!)
2015 Entegra Anthem 42DEQ
2014 Grand Cherokee toad
(Posted via iOS App)
__________________
Ron & Glenda (The Good Witch!)
2015 Entegra Anthem 42DEQ Classic
2020 Chevrolet Traverse toad
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