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11-19-2017, 08:17 AM
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#1
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Junior Member
Join Date: Nov 2017
Location: Co
Posts: 1
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Help...generator not charging batteries
2017 3900 Alpine... has optional generator... generator is not charging house batteries, we can't figure out why? We think it could be an issue with the converter/ inverter but can't locate it. Can anyone help?
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11-19-2017, 08:23 AM
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#2
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Site Team | Emeritus
Join Date: Jan 2014
Location: Western PA
Posts: 2,732
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Check your battery disconnect switch, make sure switch is in correct position " coach batteries connected to rig" we have also heard of bad connections on that switch, which is generally located in the convenience center
Added: with this switch in the wrong position rig batteries will also not charge on shore power
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2013 RAPTOR 300MP w/Rear Patio Deck NO Folding Side Ladder ![Frown](images/smilies/frown.gif)
2013 Silverado 3500HD LTZ CC LB 4X4 DRW
Duramax 6.6L Turbo Diesel; Allison Trans
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Veteran
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PSU (GO LIONS)
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11-19-2017, 08:40 AM
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#3
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,356
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Welcome to the Forum
Sounds like the dealer installed the gen? if so look at the gen, take the cover off and check the breakers on the left side. When the gen is running do you have any 110V power in the coach at all?
If memory serves me correct, the gen will charge the batteries straight back through the 12V wires for the gen to start.
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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11-19-2017, 08:58 AM
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#4
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Site Team | Emeritus
Join Date: Jan 2014
Location: Western PA
Posts: 2,732
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I was assuming your generator was supplying 110 VAC but the batteries were not charging. I was also assuming the generator did not have a separate battery, ie started off the coach battery and was charged by the rig converter.
Do batteries charge when on shore power?
__________________
2013 RAPTOR 300MP w/Rear Patio Deck NO Folding Side Ladder ![Frown](images/smilies/frown.gif)
2013 Silverado 3500HD LTZ CC LB 4X4 DRW
Duramax 6.6L Turbo Diesel; Allison Trans
Reese 20K; Carlisle Radial Trail RH/HD; TPMS (12 Tires)
Veteran
![](image.php?s=6907888f0be1a85ff21c35db911e1d0e&u=12316&type=sigpic&dateline=1396805079)
PSU (GO LIONS)
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11-20-2017, 07:43 AM
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#5
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Senior Member
Join Date: Mar 2014
Location: Mountain Home, Idaho
Posts: 3,015
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Wonder if he got it fixed. You guys tried.
Sent from my iPhone using Tapatalk
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2007 GMC Classic club cab 4x4 Duramax LBZ
2014 Alpine 3010 RE. 34 foot fifth wheel
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11-20-2017, 11:06 AM
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#6
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Junior Member
Join Date: Aug 2016
Location: EDH
Posts: 14
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The converter on my 2016 Alpine can only be accessed by removing the center panel of the aft basement wall... Ours wasn't charging by any method, and it was discovered that both 40 amp reverse polarity fuses on the converter were blown either at factory or by the dealer. When I upgrade the converter, I'm going to relocate it to a location that can be easily serviced.
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11-20-2017, 11:35 AM
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#7
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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lt_cowboy,
For the sake of clarity on the forum. You're talking about the CONverter (not the INverter).
CONverters change 120VAC into 12VDC to charge batteries and operate the 12 volt system in your trailer.
INverters change 12VDC into 120 VAC to operate things that typically are only available when connected to shore power. Things like the microwave, TV, air conditioner, possibly the refrigerator (typically if it's a compressor style refrigerator).
When you stated the reverse polarity fuses were blown, that indicated to most that you're describing the CONverter.
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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11-21-2017, 05:16 AM
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#8
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Junior Member
Join Date: Aug 2016
Location: EDH
Posts: 14
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Quote:
Originally Posted by JRTJH
lt_cowboy,
For the sake of clarity on the forum. You're talking about the CONverter (not the INverter).
CONverters change 120VAC into 12VDC to charge batteries and operate the 12 volt system in your trailer.
INverters change 12VDC into 120 VAC to operate things that typically are only available when connected to shore power. Things like the microwave, TV, air conditioner, possibly the refrigerator (typically if it's a compressor style refrigerator).
When you stated the reverse polarity fuses were blown, that indicated to most that you're describing the CONverter.
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Thanks for the CORrection. I was in a hurry. Fixed for you.
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