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Old 04-22-2018, 10:43 AM   #1
Tinner12002
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Onboard Gen not charging batteries

Ok, want to pick everyones brain here a bit. On my Raptor, as some remember I had it into service for a couple minor items and to have slide toppers put on. While it was at the dealer they told me they had to replace the converter due to it not producing 12v. Now that I've had the RV back and stored I've realized the gen isn't charging the batteries like it should. I had called my service guy a couple months ago about the fact it didn't seem like it was charging. So today when I went to the rv the main slide would only go out about 6in at a time and stop, hit the button again and the same thing and then got message on my command app to check the gen and that I had low voltage. At that time I shut it down and brought out my Honda and plugged power cord in and charged the batteries so I could operate the slides, all good there. So my question is and I've emailed my service guy too, what could be causing the onboard not to charge, wire not hooked up, hidden breaker blown...any ideas? Didn't want to take it 80mi to service if its something I can fix here, breakers in the converter all looked good. I feel it has something to do with when they changed the converter.
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Old 04-22-2018, 11:28 AM   #2
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Maybe the 120 volt breaker that serves the converter has not been turned on? Even if the breaker appears to be on, turn it fully off and then back on again, just to be sure it is on, and maybe check the voltage going to the converter.
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Old 04-22-2018, 12:32 PM   #3
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I just went back out to check the 110v and I have nothing there either even at the GFI, ACs, microwave and several outlets. I turned off the breaker for the gen and back on and still nothing, all breakers were good and no blown fuses at least none in the inside panel. I'm kinda wondering if the tech just forgot to hook up the gen completely...starts and runs fine, fuel pump primes so either my gen has taken a dump or which I feel is more than likely, that the tech didn't hook something back up.
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Old 04-22-2018, 03:29 PM   #4
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Is there an AC outlet directly on the generator? If so, is there power at that outlet when the gen is running? If there's power there, then it could be something wasn't wired up right when they replaced the converter. If there's not power right at the gen, then that would suggest the problem is there. It might be as simple as a breaker or fuse in the generator.
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Old 04-22-2018, 03:43 PM   #5
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Quote:
Originally Posted by FlyingAroundRV View Post
Is there an AC outlet directly on the generator? If so, is there power at that outlet when the gen is running? If there's power there, then it could be something wasn't wired up right when they replaced the converter. If there's not power right at the gen, then that would suggest the problem is there. It might be as simple as a breaker or fuse in the generator.
No I've not seen an outlet near or around the gen. I'm kinda leaning toward the idea that something was missed on the install. Thinking I might pull out the converter and see if I see anything unconnected behind it.
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Old 04-22-2018, 04:19 PM   #6
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Is there a transfer switch somewhere in your rig? It is possible that it is switched to utility power instead of generator.
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Old 04-23-2018, 01:46 AM   #7
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I'm sure there is a transfer switch being its setup with the onboard. It's a new and new to me rv so I really haven't had the opportunity to sort out where everythings at.
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Old 04-23-2018, 09:56 AM   #8
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Ok have an update, went to the rv this morning, checked breakers inside the gen, they were ok, checked the transfer switch with gen running, had 120 on 2 legs coming into the switch and 120 on 3 legs coming off of the switch so I don't think the switch is bad. I also had a green light inside the switch that came on when switch activated to power the other side but still nothing in the rv and still not charging.
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Old 04-23-2018, 12:07 PM   #9
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There should only be two hot legs leaving the transfer switch. Something is not right. When you are hooked up to utility power, there are two hots coming in and the transfer switch will send them to your panel. When on generator, the switch should be switched to generator, which will send those two hots to your panel. If you are energizing the neutral, and that is the third hot that you saw, then you will have no voltage between the hots and neutral, or at least one of them. Until you get this resolved, I would not be running the generator.
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Old 04-23-2018, 01:29 PM   #10
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You are right, had 120v on the red and black not the white on the discharge side of the switch going to the control panel. The other middle section is the power cord and then the 3rd section is marked for the gen on the discharge side. There was voltage there but not sure what it was, just seen the needle move on the meter. I'll post a pic. The bottom side is incoming, top outgoing.
L! & L2 on top left were hot with 120v and I had voltage on L2 on top right which is a black wire when gen was running.
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Old 04-23-2018, 07:38 PM   #11
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It's hard to tell in the photo, but it doesn't look like you have a red or black wire on the load side of that block at L1 Generator. Does your generator have two hot legs on the output, meaning does it produce 120/240 volts, like a pedestal at a park that has a 50 amp outlet. If your generator does not have two separate hot legs, which could have 240 volts across them, that may be where the problem lies. You may only be energizing one of your hot legs in the trailer. And now, getting back to your original post, if the generator is only producing one hot leg, possibly the one hot leg is energizing the opposite side of your panel from where the converter breaker is located and that is why you aren't getting your batteries charged.
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Old 04-24-2018, 01:56 AM   #12
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Quote:
Originally Posted by bobbecky View Post
It's hard to tell in the photo, but it doesn't look like you have a red or black wire on the load side of that block at L1 Generator. Does your generator have two hot legs on the output, meaning does it produce 120/240 volts, like a pedestal at a park that has a 50 amp outlet. If your generator does not have two separate hot legs, which could have 240 volts across them, that may be where the problem lies. You may only be energizing one of your hot legs in the trailer. And now, getting back to your original post, if the generator is only producing one hot leg, possibly the one hot leg is energizing the opposite side of your panel from where the converter breaker is located and that is why you aren't getting your batteries charged.
Yes it does have black wires there, and yes its does have 120v on the red and black legs, a 240v circuit. Still not sure whats going on with it but I have an appointment to take it in on the 9th and they told me I could wait on it and take it home same day so I guess that's my other option at this point.

Thanks for your help!
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Old 05-10-2018, 03:52 AM   #13
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Update after taking RV into service. They said it was the transfer switch back feeding through a neutral. They replaced to switch while I waited and all good now. Quick turn around, in repaired and back out the same day!
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