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Old 08-13-2019, 08:30 AM   #29
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Tfry, I believe the AIMS unit was supposed to replace both the stock inverter and charger so neither are present - unless they are located in different places?

I feel like I know less about RV electrical systems each day I work on them.
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Old 08-13-2019, 08:52 AM   #30
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Justin, where would I look for those items?

How do I test the 3 battery solenoids? Does it sound like 1 or more of them could be malfunctioning?

I don't understand the gauges not working.
My 2000 pace arrow came with a converter/charger, it was located beneath a drawer under the stove. I replaced it with a 2000W inverter/charger. I also bypassed that 3 solenoid POS black box and solved my charging issues.
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Old 08-13-2019, 11:11 AM   #31
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Justin, where would I look for those items?



How do I test the 3 battery solenoids? Does it sound like 1 or more of them could be malfunctioning?



I don't understand the gauges not working.


Disconnect the batteries and check for continuity. There shouldnít be any continuity between positive and ground.
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Old 08-13-2019, 11:44 AM   #32
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If the charger puts out more than 45 amps and it is run through the BCC it wonít let the current pass through. The charger will need to run directly to batteries.
I had my charger die while out west this year and learned the hard way when I replaced my 60amp charger with a 100 amp unit. Had charge current at BCC but not at batteries.
You should also hear a solenoid clunk a few seconds after plugging in charger/shore power. It is behind the BCC on my rig and hard to see.
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Old 08-13-2019, 03:12 PM   #33
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If the charger puts out more than 45 amps and it is run through the BCC it wonít let the current pass through. The charger will need to run directly to batteries.
I had my charger die while out west this year and learned the hard way when I replaced my 60amp charger with a 100 amp unit. Had charge current at BCC but not at batteries.
You should also hear a solenoid clunk a few seconds after plugging in charger/shore power. It is behind the BCC on my rig and hard to see.


Yeah thatís how mine is. If you do that you should put a manual disconnect in however.
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Old 08-13-2019, 04:13 PM   #34
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Well today, my gauges started working again so I suppose I can bank on that being a bad ground or dirty connection somewhere??

Also it seemed to work when I had both battery switches in the off position?

Meanwhile, only 1 out of the three AC GFCI circuits (sets of outlets) works when the inverter is on and shore power is disconnected.

ANNND the other 2 out of the three AC GFCI circuits work when the inverter is off and shore is connected.

So does that mean the ATS is not working? I am so lost
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Old 08-14-2019, 06:15 AM   #35
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I do NOT hear a clunk when connecting to shore power. No sound at all.
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Old 08-14-2019, 10:43 AM   #36
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hi, the charger/inverter being installed by the manufacture is rare, except on high end coaches. You must start to isolate possible problems and eliminate them one by one. If the coach batteries will charge from the engine, that is a good start. And they do not charge from the charger. That is another fact. So it looks like the charger is not putting out charging voltage to the. You need to fine it. in fleetwood coaches they put it under the refer or mounter on the floor under some adjacent drawer. It is actually a simple battery charger just like the one you connected, only built for MHs. It is plugged into the 120 volt line from shore power. It is going to be covered with dust dirt, ect. You need to determine it it getting power and is putting out DC. The output goes to a buss bar and is distributed to lights, fans, pumps, etc in the coach. It also charges the vehicle batteries when on shore power. The coach builder uses the least expensive one they can find and they do quit working. That would be my first thing to check.
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Old 08-14-2019, 07:40 PM   #37
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So the bounder never had an inverter from the beginning??

There is a charger/converter under the fridge?

I pulled the AIMS unit today hoping that they can repair it.

I believe I traced my gauges issue to the freightliner VDC because they will stop flicking on and off if you tap the VDC. I also cleaned the connections that go into it.
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Old 08-23-2019, 07:19 AM   #38
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If anyone was still wondering, I have solved this. The AIMS unit was defective in the charging side and I have replaced it with another aftermarket 8 stage smart charger.

I apologize for not seeing the problem earlier/being stubborn on and would like to thank everyone on the forum!

As for my gauges - now they are not working again and I believe I will start another thread or look through old ones.


Thanks
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