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11-20-2020, 04:57 PM
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#1
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Senior Member
Join Date: Jul 2016
Posts: 617
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Fantastic Fan Issue
I am in need of a replacement for one of the fans in the coach, or at least a motor replacement if there is such a thing. Any help appreciated.
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Russ & Lois Bell
2008 Monaco Dynasty Yorkshire IV
2013 Ford Flex
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11-20-2020, 05:09 PM
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#2
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Senior Member
Join Date: May 2013
Location: S. California
Posts: 1,379
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Fantastic fans have a website: https://www.dometic.com/en-us/us/pro.../rv-roof-vents. Easy stuff to work on. Here is a video of a guy replacing his: . Are you sure it doesn't work? Do you have power to it? There is a fuse (at least on the newer ones) that plus in at the top of the vent.
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11-20-2020, 05:29 PM
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#3
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,486
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Quote:
Originally Posted by ericisrael42
Are you sure it doesn't work? Do you have power to it? There is a fuse (at least on the newer ones) that plugs in at the top of the vent.
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Lots of testing to do before you start ordering parts .
The motor wiring ground screw , has a bad habit of corroding .
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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11-20-2020, 05:36 PM
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#4
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Senior Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: May 2016
Location: Kamloops, BC, 60 miles from the Center of the Universe according to the Rinpoche, of the SF monks.
Posts: 7,395
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Quote:
Originally Posted by Skip426
Lots of testing to do before you start ordering parts .
The motor wiring ground screw , has a bad habit of corroding .
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That happened to us last Summer! I thought the motor was gone, but found the ground connection at the cover switch was corroded. Didn't find it until I had it all pulled apart from the top.
Simple fix from inside IIRC.
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Happy Glamping, Norman & Elna. 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
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11-20-2020, 06:20 PM
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#5
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Senior Member
Join Date: Jul 2007
Posts: 1,173
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You don't say but I assume the lid will open. If not you have other problems than just the fan motor and you may not have a fan motor problem anyway.
As suggested, check the small push type pin switch under the lid. It is the ground connection for the motor and does have a history of corrosion causing it to lose contact. I don't remember the size of the nut but take a wrench, loosen the nut slightly and retighten. Oh, be aware that when you start twisting the nut on that switch the fan motor may turn on. Keep your fingers and any tools away from the fan blade. You can also spray some contact cleaner on it when loosened. This is a periodic maintenance item. Probably play this game with the switch about every other year or so.
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Pete - Full Timing
2000 Country Coach Magna 40' Indulgence, CAT C10, #5892
2019 Ford Ranger XLT
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11-20-2020, 07:21 PM
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#6
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Senior Member
Join Date: Jul 2016
Posts: 617
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After listening to you guys, went to work on it. What is happening is the motor continues to try to raise the lid and the manual knob continues to rotate. Took that off and found the gears that go into the are stripped. The lid wouldn't close, but managed to get it closed.
Next is repairing the gear shaft if possible?
__________________
Russ & Lois Bell
2008 Monaco Dynasty Yorkshire IV
2013 Ford Flex
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11-20-2020, 07:50 PM
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#7
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Senior Member
Join Date: May 2004
Location: MI
Posts: 2,197
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Not saying the gears aren't stripped but the handle does pull to open or close the lid manually. If you don't have it torn apart push the handle in and see if it will open the dome with the motor.
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11-20-2020, 09:15 PM
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#8
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Senior Member
Join Date: Jul 2016
Posts: 617
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Argosy,
I will try that tomorrow. DW has gone to bed so for sake of a happy marriage, better not mess with it anymore tonight. I will let you know then what the situation is.
__________________
Russ & Lois Bell
2008 Monaco Dynasty Yorkshire IV
2013 Ford Flex
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11-20-2020, 09:54 PM
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#9
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,971
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When we bought this MH and got it home I tried to open the FF vents, one worked fine the other did nothing. Finally I spotted the 3-speed switch, which was set to off.
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2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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11-21-2020, 12:56 PM
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#10
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Senior Member
Join Date: Apr 2015
Posts: 153
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If you call fantastic they will send you new gears at no cost.
Bob
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05 Bounder 34 DP 300CAT
04 Tahoe 4/4
Rving over 50yrs
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11-21-2020, 04:59 PM
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#11
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Senior Member
Winnebago Owners Club Ford Super Duty Owner
Join Date: Dec 2009
Posts: 2,529
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Maybe someone knows a quick fix: One of my F-fans has a very light squeak as the fan turns. There's no way to lube it that I see. I'll just let it go until something more serious happens unless there's a remedy. Thanks.
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2008 Winnebago Sightseer 35-J
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11-21-2020, 06:53 PM
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#12
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Senior Member
Join Date: Jul 2016
Posts: 617
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I did a deeper look and found that my first thought was probably the correct one. The gears are definitely stripped. So, Monday will call Fantastic (I believe it is now Dometic).
__________________
Russ & Lois Bell
2008 Monaco Dynasty Yorkshire IV
2013 Ford Flex
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11-22-2020, 10:00 AM
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#13
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Senior Member
Join Date: Sep 2016
Location: Sarasota, FL
Posts: 5,228
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Quote:
Originally Posted by Arby49
After listening to you guys, went to work on it. What is happening is the motor continues to try to raise the lid and the manual knob continues to rotate. Took that off and found the gears that go into the are stripped. The lid wouldn't close, but managed to get it closed.
Next is repairing the gear shaft if possible?
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The lid motor has a little gear on the end, like the crank on a crank out window - this is what you're saying is stripped. If your gear is really stripped out, get another lid motor, they're pretty inexpensive. My motor sits in a corner of the frame, the new plastic housing that comes with the new motor is designed to sit on one of the sides of the frame. No problem. Remove the screw that holds the crank handle on, remove the new motor from the plastic housing, and put it back in the old housing. After you install new motor, you'll still feel that the knurl doesn't penetrate enough of the female mechanism that raises the lid, to get a good bite. AND it'll strip out again over time. You can order the lid mechanism too is you think you need it.
Do you notice the play, vertically, in the whole motor? Meaning between the manual handle and the plastic cover the motor sits in. What I found is that the gear needed about another 1/4" to really engage in the lid female. I didn't really look at this until I had bought new lid motors.
To raise the new motor, I cut little blocks of wood to put under the "ears" of the motor inside the plastic cover, which raised the motor and it's knurl 1/4", pushing the gear that much deeper into the female mechanism. After I found that this was indeed the answer, I glued the wood into the plastic housing, reassembled the motor/cover and mounted it back into frame. Works perfect now and I predict no problems forth coming with the gear stripping out again.
Hope this helps.
__________________
Rick and Larrie Dee
1997 40' Newmar London Aire DP CTA 8.3 (Mechanical) 325 Spartan MM
Bringing her back to her glory.
'08 Jeep GC Overland.
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11-22-2020, 10:05 AM
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#14
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Senior Member
Join Date: Sep 2016
Location: Sarasota, FL
Posts: 5,228
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Quote:
Originally Posted by puttin
Maybe someone knows a quick fix: One of my F-fans has a very light squeak as the fan turns. There's no way to lube it that I see. I'll just let it go until something more serious happens unless there's a remedy. Thanks.
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Could it be lightly rubbing on the screen or part of that layer? If I push up on the screen at all I hear a squeak as the fan hits it.
__________________
Rick and Larrie Dee
1997 40' Newmar London Aire DP CTA 8.3 (Mechanical) 325 Spartan MM
Bringing her back to her glory.
'08 Jeep GC Overland.
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