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03-30-2019, 09:54 PM
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#1
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Montana Fan
Join Date: Sep 2006
Location: Kent
Posts: 294
M.O.C. #6300
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Battery/Inverter Issue Continues
Uncle~last summer I had power loss message on fridge do to battery issue failure. Quickly hooked up battery charger to save food and that worked. Spring has arrived so I took advise of local fivers and bought 2 new batteries. All was well until I used ceiling lights for a spell and message on fridge came up failing power. I used forum last fall to seak help. All said it could be inverter fuse burned out. I can't for the the live of me to find inverter in my 2014 Montana. Fuse box is on island and there is no issues there. Where the he'll is my invertor?
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03-30-2019, 10:19 PM
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#2
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Montana Fan
Join Date: Oct 2015
Location: Round Rock
Posts: 475
M.O.C. #17905
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Mine is in the driver side pass-thru attached to ceiling of the pass-thru near the wall that separates the basement (storage area under nose) and the pass-thru. The fuse is in the back end of the inverter. Yours may be slightly different . Start there.
__________________
Pete & Joan & "Honey" fur-baby.
2015 Montana 3611RL 2012 F350 6.7 DRW Lariat
Disc Brakes & Sailun 14 ply S637
6-pt Hydraulic leveling
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03-31-2019, 08:13 AM
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#3
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Seasoned Camper
Join Date: Aug 2016
Location: Sherman
Posts: 54
M.O.C. #18941
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If you are trying to run your fridge on the inverter then it will only run a short time before the batteries are depleted.
__________________
2017 Alpine 3401RS,Titan Disc,Morryde SRE 4000, 2016 Ram 3500HD Laramie SRW,LWB,4X4, Aisin transmission
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03-31-2019, 08:52 AM
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#4
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Montana Fan
Join Date: Sep 2006
Location: Kent
Posts: 294
M.O.C. #6300
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The inverter is not working because brand new batteries drained out in one day. Especially when I turned on the ceiling lights. The inverter manual shows a possible fuse that might be burned out which would be an easy fix. My problem is I can't find the inverter. It's not behind the fuse box and all the fuses in the box are good. My Monty is a 2014 Mountainer. Where is the damn thing hiding??? Just a footnote, I'm also plugged into 50amp.
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03-31-2019, 09:23 AM
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#5
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Seasoned Camper
Join Date: Aug 2016
Location: Sherman
Posts: 54
M.O.C. #18941
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The "Inverter" is what supplies 120VAC to the residential fridge. The "converter" is what supplies DC power for all DC circuits and charges the batteries. When plugged into 50 Amps your "inverter" will not be working but your "Converter" should be suppling 12VDC to the 12 volt circuits and charge the batteries. The converter has two 40 amp fuses to protect against reverse polarity. It is most likely located behind the wall panel in the storage compartment. It could also be behind the breaker panel but sense you have 50 amps probably not. Good luck.
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2017 Alpine 3401RS,Titan Disc,Morryde SRE 4000, 2016 Ram 3500HD Laramie SRW,LWB,4X4, Aisin transmission
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03-31-2019, 09:31 AM
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#6
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Montana Fan
Join Date: Sep 2006
Location: Kent
Posts: 294
M.O.C. #6300
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Oopps~ I mean converter
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03-31-2019, 09:58 AM
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#7
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Montana Master
Join Date: Oct 2017
Location: Bastrop
Posts: 2,892
M.O.C. #20753
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Have you checked the key in the convenience center?
__________________
Mocha, one-eyed toothless, hurricane survivor, Pirate dog
2019 20th Anniversary Edition 3701LK
B&W 20K for Ford OEM Puck
2018 Ford F-350 Lariat CCLB PSD DRW KJ5CQH
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03-31-2019, 12:54 PM
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#8
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Montana Master
Join Date: Jan 2018
Location: Thornville
Posts: 546
M.O.C. #21110
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Quote:
Originally Posted by jeffba
Have you checked the key in the convenience center?
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IF thats not on, he wouldn't be able to use anything 12volt... so Im betting its in the correct position.
I have NOT looked for the "converter" in my coach yet, but in our old TT it was located in with the fuse panel. I had to remove the outer cover of fuse panel, and it was on the bottom of that area. It slid out to access the connections and fuses.
__________________
Darwin & Carla
2018.5 3701LK Montana
2022 3500HD Denali Duramax SRW
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03-31-2019, 01:17 PM
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#9
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Montana Fan
Join Date: Sep 2006
Location: Kent
Posts: 294
M.O.C. #6300
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I found it. I need to replace it after 5yrs
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03-31-2019, 01:33 PM
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#10
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Montana Master
Join Date: Jan 2018
Location: Thornville
Posts: 546
M.O.C. #21110
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Quote:
Originally Posted by jaybird
I found it. I need to replace it after 5yrs
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Where was it located at ? It could help others that have the same issue that you had to solve their problem.
__________________
Darwin & Carla
2018.5 3701LK Montana
2022 3500HD Denali Duramax SRW
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03-31-2019, 08:41 PM
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#11
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Montana Fan
Join Date: Sep 2006
Location: Kent
Posts: 294
M.O.C. #6300
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In the back walls of the front storage area. After all my frustration it was plain as day and easy access in the middle section once you unscrew the backing? $205 replacement at Amazon
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03-31-2019, 08:44 PM
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#12
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Montana Fan
Join Date: Sep 2006
Location: Kent
Posts: 294
M.O.C. #6300
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I should note! I replaced $400 worth of batteries to think that was the problem and I'm anxiously awaiting my new converter and see if my troubles supside!
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04-01-2019, 08:36 AM
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#13
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Seasoned Camper
Join Date: Aug 2016
Location: Sherman
Posts: 54
M.O.C. #18941
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Did you check the 40 amp fuses?
__________________
2017 Alpine 3401RS,Titan Disc,Morryde SRE 4000, 2016 Ram 3500HD Laramie SRW,LWB,4X4, Aisin transmission
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04-07-2019, 01:13 PM
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#14
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Montana Fan
Join Date: Sep 2006
Location: Kent
Posts: 294
M.O.C. #6300
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Yes on the fuses. The fuses are there just in case you wire your battery incorrectly according to converter manual
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04-07-2019, 05:01 PM
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#15
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New Member
Join Date: Sep 2018
Location: Santa Rosa Beach
Posts: 6
M.O.C. #22558
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If you are plugged into 50 amp power, your fridge is running on the 115 VAC supplied by shore power. Don't understand the low power warning.
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10-26-2020, 03:15 PM
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#16
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Established Member
Join Date: Oct 2017
Location: Bethlehem
Posts: 34
M.O.C. #20763
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Quote:
Originally Posted by jaybird
In the back walls of the front storage area. After all my frustration it was plain as day and easy access in the middle section once you unscrew the backing? $205 replacement at Amazon
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Older post I know but im having a similiar issue on my2017 killing batteries just using jacks for hooking back up to truck I think inverter is shot as the batteries are both deepcyclce and 2 years old and both read 13.6 volts when disconnected
__________________
2017 3950BR slider toppers
16 F350 drw Ruby Red 6.7
Curt Q25
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10-26-2020, 04:25 PM
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#17
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,359
M.O.C. #4831
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Quote:
Originally Posted by FiveOfastback
Older post I know but im having a similiar issue on my2017 killing batteries just using jacks for hooking back up to truck I think inverter is shot as the batteries are both deepcyclce and 2 years old and both read 13.6 volts when disconnected
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First you do *NOT* have an INVERTER in your 3950BR (unless you installed one yourself). You do have a CONVERTER. A Converter takes in 120V AC and produces 12V DC to power lights, charge batteries, run slides, etc. An inverter takes in 12V DC and produces 120V AC to power thing like a TV or refer when shore power is unavailable.
A wet cell battery has a normal state of charge of 12.5V. The converter produces around 13.6V when running (and charging your battery). Due to the way batteries take a charge, the battery will show a charge of 13+V immediately after disconnecting the the converter. After 30 minutes or so the battery will equalize itself and should show around 12.5V.
So if your battery is reading 13.6V *AFTER* being disconnected it is a sure sign the converter is working.
What makes you say the batteries are dead? Is it because the jacks/slides start/stop? Or are the batteries below 12.0V after running jacks/slides?
We need a better description of what "killing batteries" means.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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10-26-2020, 04:52 PM
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#18
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Established Member
Join Date: Oct 2017
Location: Bethlehem
Posts: 34
M.O.C. #20763
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Jack pump quits almost like overheat or under voltage. Hoook truck up and jacks work for few seconds.
Hook up to shore power and all is well
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10-26-2020, 07:30 PM
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#19
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,359
M.O.C. #4831
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Classic signs of a failing 50 amp circuit breaker. DO a Search on "50 amp self resetting breaker" and you will understand. Here is the one to start with.
https://www.montanaowners.com/forums/showthread.php?t=78438
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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10-28-2020, 12:39 PM
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#20
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Established Member
Join Date: Oct 2017
Location: Bethlehem
Posts: 34
M.O.C. #20763
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Quote:
Originally Posted by FiveOfastback
Older post I know but im having a similiar issue on my2017 killing batteries just using jacks for hooking back up to truck I think inverter is shot as the batteries are both deepcyclce and 2 years old and both read 13.6 volts when disconnected
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Got these to hopefully fix problem and have a spare
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