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Old 09-09-2019, 06:42 PM   #1
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Converter Recommendations

We have a 2005 Safari SS (25'). Since we have had it, we have never been able to use our 12V lights/fans unless we are connected to shore power. We have been trying to track the problem and have come to the conclusion that the converter must be bad.

Wondering what you guys (the experts) recommend.

Thanks in advance.
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Old 09-09-2019, 11:05 PM   #2
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Converter Recommendations

Progressive dynamics PD4655 is what you want. It’s the high-quality go-to multi-stage converter/charger replacement for the original parallax converter in your 2005.

http://www.bestconverter.com/PD4655V...l#.XXcudiRMHDs
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Old 09-10-2019, 06:18 AM   #3
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That is the exact one I put in my 2015 23d Flyingcloud. I also bought it from bestconverter. I also installed it my self, not that hard to do at all.
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Old 09-10-2019, 06:27 AM   #4
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It might make since to upgrade your converter either way, but how did you conclude its the problem? The fact that you only have 12 V power when you are on shore power suggests your converter is supplying 12-volt power but the batteries are not. So have you checked your batteries? There's a good possibility you should replace both the batteries and converter. --Frank
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Old 09-10-2019, 08:27 PM   #5
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Quote:
Originally Posted by fran&frank View Post
It might make since to upgrade your converter either way, but how did you conclude its the problem? The fact that you only have 12 V power when you are on shore power suggests your converter is supplying 12-volt power but the batteries are not. So have you checked your batteries? There's a good possibility you should replace both the batteries and converter. --Frank
We have checked the batteries. They appear to be good. Ordered the converter on the premise that regardless, it needs to be replaced and upgraded.

Thanks for the input!
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Old 09-10-2019, 08:50 PM   #6
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Something about this doesn't make sense. If you have 12 volts when connected to shore power, your converter is working. If your batteries are good, the converter must be charging them. I can't understand why the converter is connected to the trailer and the batteries but the batteries are not connected to the trailer.

I don't think a new converter is going to solve your problem, regardless of the advisability of replacing the old converter to protect your batteries. You need someone with good electrical troubleshooting skills to figure this out. I can't see any way for this to happen if your trailer is wired the way the manual says it is.

Al
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Old 09-10-2019, 08:56 PM   #7
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My vote is for Progressive Dynamics too, I just installed one, easy to do, got from Bestconverter. My old converter only seemed to have 1 voltage, even those it was a new 3 stage, it only ever read 13.6. The new one, really has 4 stages. Double check the batteries, could be an issue, good luck
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Old 09-10-2019, 08:56 PM   #8
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Quote:
Originally Posted by Al and Missy View Post
Something about this doesn't make sense. If you have 12 volts when connected to shore power, your converter is working. If your batteries are good, the converter must be charging them. I can't understand why the converter is connected to the trailer and the batteries but the batteries are not connected to the trailer.

I don't think a new converter is going to solve your problem, regardless of the advisability of replacing the old converter to protect your batteries. You need someone with good electrical troubleshooting skills to figure this out. I can't see any way for this to happen if your trailer is wired the way the manual says it is.

Al
I'm wondering if there is an issue with the Use/Store solenoid and it's stuck on "Store." This would prevent 12V power from the batteries, so no juice to the system unless plugged in to shore power. Their trailer might be wired like Airstream has been doing the last year or two, where the batteries are charged by the converter even if in 'store' mode, hence keeping them charged. But in "use" mode the batteries aren't being switched in to the 12v system, so there's no power if not plugged in to shore power. I agree, their problem is likely elsewhere but at least they'll have an upgraded converter!
EDIT: We discussed the issue with Pamu last month as well. Hopefully they'll get it figured out. I'm still suspecting the Use/Store switch. http://www.airforums.com/forums/f37/...er-199742.html
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Old 09-10-2019, 09:17 PM   #9
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Quote:
Originally Posted by wulfraat View Post
Progressive dynamics PD4655 is what you want. It’s the high-quality go-to multi-stage converter/charger replacement for the original parallax converter in your 2005.

http://www.bestconverter.com/PD4655V...l#.XXcudiRMHDs
Yep, this is the one you want
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Old 09-10-2019, 09:51 PM   #10
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Originally Posted by pcskier View Post
I'm wondering if there is an issue with the Use/Store solenoid and it's stuck on "Store." This would prevent 12V power from the batteries, so no juice to the system unless plugged in to shore power. Their trailer might be wired like Airstream has been doing the last year or two, where the batteries are charged by the converter even if in 'store' mode, hence keeping them charged. But in "use" mode the batteries aren't being switched in to the 12v system, so there's no power if not plugged in to shore power. I agree, their problem is likely elsewhere but at least they'll have an upgraded converter!
EDIT: We discussed the issue with Pamu last month as well. Hopefully they'll get it figured out. I'm still suspecting the Use/Store switch. http://www.airforums.com/forums/f37/...er-199742.html
If the converter is charging the batteries and the converter can be connected to the trailer then it would stand to reason that the batteries can be connected to the trailer.

I went back and looked at the pictures in the previous thread. The first picture in post 19 shows 12 volts between the battery positive red wire and the converter positive black wire with the battery being more positive. This should not be. Why isn't that converter positive wire the same size as the battery positive? Is it a sense wire to tell the power distribution panel that there is shore power? Pamu needs to find out why there is not 12V on that black wire. Was the shore power on when the picture was taken? If not that could explain it. But battery power and ground are reaching the fuse panel. I'm going to reiterate my suggestion that there is a burned land on the back side of that board.

Al
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Old 09-10-2019, 10:13 PM   #11
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I found the manual for the power center. It appears to be a Magnetek/PArallax 7355. The black wire is listed as the converter output. The two black fuses at the top of the board are the reverse polarity protection fuses. The DC wiring diagram at the front of the trailer manual is not consistent with the one in the electrical portion. The later one shows the disconnect relay. According to that diagram, the red wire comes from the disconnect relay so the relay must be in USE. Further, if the disconnect relay were stuck in STORE, the converter would still power the trailer and the batteries would not, but the batteries would not get charged, either.

I remain suspicious of reading 12V between the red wire and the black wire; I suspect the problem is on that board, not with the disconnect relay.

Al
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Old 09-11-2019, 08:37 AM   #12
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Pamu has posted the 12v issue in another post. http://www.airforums.com/forums/f37/...-199742-3.html

In that thread she says she has replaced the solenoid and now the Use/Store is clicking but there is still no power in the trailer. I asked her to do some tracing of the wire from the solenoid because it should now have 12v on it. Possibly there is a bad fuse in the line. In an earlier post in that same thread she said the Use/Store light was red, even when not on shore power. She also said they used a portable charger to charge up the AS's batteries and they held a charge. So whether or not the converter is working, the batteries are charged and she should have power past the solenoid now.
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Old 09-11-2019, 08:55 AM   #13
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Pamu has posted the 12v issue in another post. http://www.airforums.com/forums/f37/...-199742-3.html

In that thread she says she has replaced the solenoid and now the Use/Store is clicking but there is still no power in the trailer. I asked her to do some tracing of the wire from the solenoid because it should now have 12v on it. Possibly there is a bad fuse in the line. In an earlier post in that same thread she said the Use/Store light was red, even when not on shore power. She also said they used a portable charger to charge up the AS's batteries and they held a charge. So whether or not the converter is working, the batteries are charged and she should have power past the solenoid now.
According to the wiring diagram in the manual, the red wire, on which she measured 12V, comes FROM the solenoid. I'm pretty sure she measured this with shore power disconnected. If so, she has 12V from the batteries at the 12v distribution panel input. I think the problem has to be on the PCB in the distribution panel.

Al
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Old 09-11-2019, 11:12 AM   #14
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Originally Posted by Al and Missy View Post
According to the wiring diagram in the manual, the red wire, on which she measured 12V, comes FROM the solenoid. I'm pretty sure she measured this with shore power disconnected. If so, she has 12V from the batteries at the 12v distribution panel input. I think the problem has to be on the PCB in the distribution panel.

Al
So power from the solenoid goes to the distribution panel circuit board on the converter? Defective panel or possible loose connection??? In the attached picture, there should be 12v coming in on on the screw between 3 & 4?

My owners manual also references a distribution panel in the front of the trailer. Maybe you're referring to that one?
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