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Electrical Discussion of preventative/corrective maintenance and other technical issues regarding your coach's electrical system.

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  #61  
Old 09-28-2018
mose mose is offline
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That doesn't look factory. Does the coach still have the factory 'AUX BATTERY' solenoid, or is this its replacement?

The factory AUX BATTERY solenoid had two functions, one was to provide starting amps (boost) by connecting engine and house batteries together. The other is to provide charging of both battery banks from either source (charge engine batteries from 120V charger, and charge house batteries from alternator).

I don't think you need an extra 'charging' solenoid if you have the factory AUX solenoid in working order. And your solenoid may be too small to function as a start/boost solenoid. Those original high amperage solenoids are available.

As for your wiring, the two diodes are obviously incorrectly wired, but it's unclear how the rest of this solenoid is wired. The file John posted shows the two diodes (which are directional) hooked to each battery input so that the solenoid can operate even if one of the batteries is dead. And there are two 'GND' sources for the other side of the solenoid coil. One (PURple) comes from the dash 'aux' switch, and the other (RED) comes from the alternator relay to sense when the alternators are charging.
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  #62  
Old 09-28-2018
Butch Charpentier Butch Charpentier is offline
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Well one of the diodes is dead and I'm on the road. The boys from Coach Craft told me the correct wiring diagram and that they were 6 amp diodes. The only diode I could find in Gettysburg was 12 amp. So I'm going to run with that one. Hopefully I should be okay until I get to WOG. I was hoping to find someone else with the same setup as it came from the factory that way except that the diodes were 3 amp and updated to 6 amps.
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  #63  
Old 10-11-2018
Butch Charpentier Butch Charpentier is offline
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Update; broke down 3 more times. Come to find out the 200 amp continuous duty solenoid would get so hot that the coil would lose it's magnetism thus the engine batteries were not receiving a charge from the alternators causing the engine to stop after a while. Interesting enough the gauges on the dash were reading 13.5 to 14 volts the whole time until the engine shut down. I think the gauges are reading the alternators output rather than battery charge. So at this point we got to my daughter's driveway in Charlotte Nc. to do repairs. I've bought a 500 amp continuous duty solenoid and am waiting on delivery of the 6 amp diodes. Hopefully we will be pulling into Pine Mountain on Sunday. If this works I will be more than happy to show anyone whose interested in seeing the mod.
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  #64  
Old 01-02-2019
Fatsorider Fatsorider is offline
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Someone tell me how on my 1998 LXI can I keep the coach batteries from dying. I have it plugged in to shore power always. I have no clue.
Thanks
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  #65  
Old 01-02-2019
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Randy Dupree Randy Dupree is offline
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Quote:
Originally Posted by Fatsorider View Post
Someone tell me how on my 1998 LXI can I keep the coach batteries from dying. I have it plugged in to shore power always. I have no clue.
Thanks
Is your dash battery combiner switch switched on?
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  #66  
Old 01-02-2019
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Quote:
Originally Posted by Fatsorider View Post
Someone tell me how on my 1998 LXI can I keep the coach batteries from dying. I have it plugged in to shore power always. I have no clue.
Thanks
Besides what Randy said, do you have a high/low charging switch in the electrical cord bay? I have one along with the Tank Fill switch and phone/cable hookup. I have had a brain fart and hit the high/low switch, by accident, to low and the batteries don't get charged enough. Mine has to be on high for them to get a full charge. Don't know if you have this in your '98 or not. My vintage Birds do.

Another thing to check is your remote panel for your charger/inverter. If it is not set correctly your batteries won't charge no matter how long it is plugged in. Mine is a Xantrex 3012 with a Xanbus remote. I replaced my old Heart system with it and you do have to program that correctly for it to charge them. Again, you don't say what you have so ignore this if it does not appy.
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  #67  
Old 01-02-2019
Fatsorider Fatsorider is offline
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Randy if you mean the Aux batt button on tot dashboard. I did not know that made a difference. I will tell you that when the coach wound crank if I hit that swith then it does. Indicated to me it’s yawing the house batteries to crank the engine. And I don’t think I have a high/low swith near my fuel or lap gas fill.
Thanks gents.
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  #68  
Old 01-02-2019
Clembo Clembo is offline
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NOCO Genius GENM1 4 Amp 1-Bank Waterproof Smart On-Board Battery Charger - for chassis batteries - battery combiner switch off - quality excellent -
no buttons or switches - sealed unit - Amazon $60 - Waterproof - mount in Battery compartment - leave plugged in
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  #69  
Old 01-02-2019
Fatsorider Fatsorider is offline
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Clem. I have a charger that I use occasionally but felt that I have to individually charge the 3 coach batteries 1 by 1. Although they are all connected in series?
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  #70  
Old 01-02-2019
Clembo Clembo is offline
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The NOCO Charger goes into float mode when batteries are fully charged and then switches to maintenance mode when it senses a drop and back to float automatically. My Chassis batteries have 0 load when coach ignition is off.
Dan
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