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03-09-2022, 03:26 PM
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#1
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New Member
Join Date: Mar 2022
Location: MILLSTADT
Posts: 5
M.O.C. #30626
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Both Vent Fans not working 2016-3820FK
Our bathroom and kitchen vent fans have both stopped working. W'then I try to open them the manual knob moves slightly but doesn't spin. If I manually turn them the vent cover does open. I suspect a power issue but don't know where power comes from.
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03-10-2022, 08:03 AM
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#2
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Montana Master
Join Date: Mar 2021
Location: Western NY
Posts: 525
M.O.C. #28430
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Make sure the rain sensors, if you have them, aren’t wet. We had one close in the middle of the night from heavy dew and in the morning it wouldn’t open. Opened it manually and dried off the sensor and all was good. I found as I am sure others already know, running the fan on low seems to keep that from happening.
__________________
Mark & Karen
2021 3121rl - slide toppers, cottage white, TST 507 TPMS, X-Factors, disc brakes
2021 F-350, 6.7L, SRW CC LB - B&W Companion, Bakflip cover
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03-10-2022, 09:12 AM
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#3
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New Member
Join Date: Mar 2022
Location: MILLSTADT
Posts: 5
M.O.C. #30626
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Hello,
Thanks for the information. You were correct.
Both fans are working correctly today. We had the AC running and the humidity was high the past couple of days. I think condensation settled on the rain sensors like you suggested.
Again, Thank You
Paul
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03-10-2022, 12:51 PM
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#4
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Montana Master
Join Date: Mar 2021
Location: Western NY
Posts: 525
M.O.C. #28430
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Glad it worked out. Happy camping!
__________________
Mark & Karen
2021 3121rl - slide toppers, cottage white, TST 507 TPMS, X-Factors, disc brakes
2021 F-350, 6.7L, SRW CC LB - B&W Companion, Bakflip cover
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03-10-2022, 07:46 PM
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#5
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,787
M.O.C. #24086
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I put covers over both fans. Very handy when raining.
MAXXAIR 00-955002 Black Fanmate Cover with Ez Clip Hardware https://www.amazon.com/dp/B010D1VJSC...ing=UTF8&psc=1
__________________
Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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03-10-2022, 07:54 PM
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#6
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Montana Master
Join Date: Mar 2021
Location: Western NY
Posts: 525
M.O.C. #28430
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Yep, Maxxair vent covers are on the list for when we get home next month. Living in the Monty this winter is the “ try it the way it is” learning curve. Didn’t want to spend too much on it until I used it a while before deciding which gadgets to get
__________________
Mark & Karen
2021 3121rl - slide toppers, cottage white, TST 507 TPMS, X-Factors, disc brakes
2021 F-350, 6.7L, SRW CC LB - B&W Companion, Bakflip cover
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03-10-2022, 08:11 PM
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#7
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Montana Fan
Join Date: Aug 2017
Location: Olmsted Falls
Posts: 226
M.O.C. #20364
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We also have a 3820FK, ours 2017, we have had issues with the kitchen fan since the very beginning. we used to turn on the fan and the refrigerator would shut off. now we can't even turn the fan on, we can only open the vent cover. we had installed the external covers in the very beginning so were pretty sure we don't have a moisture issue. any ideas? switch maybe?
__________________
Rick & Joyce Jones
RMC(SW) USN Ret.; AT&T Ret.
2024 3231CK, IS, 400W Solar, Slide covers, Predator Gen,, 2016 Chevy High Country 3500 Diesel Dually
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03-10-2022, 08:46 PM
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#8
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Montana Fan
Join Date: Dec 2016
Location: Lakewood, Wa.
Posts: 188
M.O.C. #19305
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The 2016 3820FK's were originally wired into the refrigerator circuit. Our 1st year the fan would send the Norcold into an error message. We didn't figure this out, due to turning the fan on and leaving for a short outing, only to come back and find the fridge not working. The dealer maintenance people, rewired the fan circuit to another circuit and that solved our problem. The 1st year only had one fan up front over the table. They knew about this early on and there were several older posts on this subject in the forum.
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Henry & Lita (Scotty/Bluey Our shelties)
2022 SOB with 2015 Chevy Silverado
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03-16-2022, 01:43 PM
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#9
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Montana Master
Join Date: Jun 2020
Location: Qualicum Beach
Posts: 665
M.O.C. #26399
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Quote:
Originally Posted by Hairstyles
Our bathroom and kitchen vent fans have both stopped working. W'then I try to open them the manual knob moves slightly but doesn't spin. If I manually turn them the vent cover does open. I suspect a power issue but don't know where power comes from.
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Those mechanisms frequently break the gears. I was lucky in that I was replacing mine anyway so I didn't care when I found the first unit with busted gears. Can't remember if they need to be lubed or not, Get on the roof and start disassembling to get to the little gear box and watch what happens when you turn the handle. Mine opened up the gear case.
__________________
2018 Keystone Montana 3811MS
2017 Ford F450 diesel dually
600AH Battle Born Lithium Batteries, 1,080 watts solar
3,000 watt hybrid inverter with 120A charger
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03-16-2022, 02:28 PM
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#10
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Established Member
Join Date: Aug 2016
Location: Gold River
Posts: 12
M.O.C. #18912
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Roof fans
My 2017 Montana High country 374FL After 2 years of little use, had both kitchen and bathroom fans develop problems. Contacted MaxxFan and spoke to technician, and they said that anything over a certain voltage would cause problem. On shore power it is always over the voltage he cited.
Replaced both circuit boards and neither work properly. One only opens and closes and if trying to turn fan on causes lid to close. The other will open and not close having to get ladder to close manually.
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03-16-2022, 03:29 PM
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#11
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Montana Master
Join Date: Mar 2021
Location: Western NY
Posts: 525
M.O.C. #28430
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Quote:
Originally Posted by Klonerama
My 2017 Montana High country 374FL After 2 years of little use, had both kitchen and bathroom fans develop problems. Contacted MaxxFan and spoke to technician, and they said that anything over a certain voltage would cause problem. On shore power it is always over the voltage he cited.
Replaced both circuit boards and neither work properly. One only opens and closes and if trying to turn fan on causes lid to close. The other will open and not close having to get ladder to close manually.
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Leave the ladder outside someone here posted about how they modified the end of a 1 1/2” piece of pvc pipe to fit the knobs on the awning adjustment. I thought that was a great idea so I made up one with a 2 1/2’ piece of pipe.
When my fan lid closed and wouldn’t open, I went out and got that pipe and cut 3 notches in the other end to fit the 3 winged knob on the fan. Easy peasy
__________________
Mark & Karen
2021 3121rl - slide toppers, cottage white, TST 507 TPMS, X-Factors, disc brakes
2021 F-350, 6.7L, SRW CC LB - B&W Companion, Bakflip cover
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03-16-2022, 03:49 PM
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#12
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Montana Master
Join Date: Jun 2020
Location: Qualicum Beach
Posts: 665
M.O.C. #26399
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Quote:
Originally Posted by Hairstyles
Our bathroom and kitchen vent fans have both stopped working. W'then I try to open them the manual knob moves slightly but doesn't spin. If I manually turn them the vent cover does open. I suspect a power issue but don't know where power comes from.
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The power is from the RV battery.
The gear that raises and lowers is likely destroyed but disassemble and check if it can be saved.
__________________
2018 Keystone Montana 3811MS
2017 Ford F450 diesel dually
600AH Battle Born Lithium Batteries, 1,080 watts solar
3,000 watt hybrid inverter with 120A charger
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03-16-2022, 03:50 PM
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#13
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Montana Master
Join Date: Jun 2020
Location: Qualicum Beach
Posts: 665
M.O.C. #26399
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Quote:
Originally Posted by Klonerama
My 2017 Montana High country 374FL After 2 years of little use, had both kitchen and bathroom fans develop problems. Contacted MaxxFan and spoke to technician, and they said that anything over a certain voltage would cause problem. On shore power it is always over the voltage he cited.
Replaced both circuit boards and neither work properly. One only opens and closes and if trying to turn fan on causes lid to close. The other will open and not close having to get ladder to close manually.
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BS, the fans are run from the RV battery. The fail point on those is the gear that raises the lid.
__________________
2018 Keystone Montana 3811MS
2017 Ford F450 diesel dually
600AH Battle Born Lithium Batteries, 1,080 watts solar
3,000 watt hybrid inverter with 120A charger
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03-16-2022, 06:21 PM
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#14
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Established Member
Join Date: Nov 2021
Location: Culpeper
Posts: 20
M.O.C. #30103
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Yeah, I thought that was strange that shore power would affect them. No matter what you put into an inverter, you’re either going to get the 12v-14v or you’re going to get nothing. It’s the basic principal of a UPS.
Given that, my gear bodies have given up the ship in two of my three fans within 5 days of each other. I’m pretty dependent on them as I leave my pups in the trailer while I’m at work and the trailer tends to heat up during the day.
Is this a part that CW normally carries? I bought the extended warranty when I bought the trailer this past November, but in case it’s a drawn out argument, I’d like to be able to fix it myself. Is MaxAirr easy to work with? I’m getting the impression that their techs are quick to pass the blame off them.
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