Edited by Joelene, 29 January 2011 - 11:57 AM.
Coach battery not charging
Posted 29 January 2011 - 11:53 AM
Posted 29 January 2011 - 02:02 PM
Posted 29 January 2011 - 02:07 PM
2 possibilities come to mind.
1 - bad isolator;
2 - The isolator is not getting a signal. (Has the wire been pulled off by accident? Is there a wire hear the isolator not attached to anything?)
Do you have ( or know someone) a multi-meter (aka VOM meter) and know how to use it?They're almost essential to troubleshoot electrical problem.
BTW, I hate electrical problems. But an alternator will charge (at idle) as long as the red 'ign' warning light on your dash is off. But not quickly!
Posted 29 January 2011 - 02:29 PM
Yes you have some type of isolator there are two types the most common one is a relay type it turns on with the key with a fair loud click. The other type is solid state and will look box like with cooling fins and several wires connected to it both types will be under the hood some where. With out a volt meter you are kind of in the dark (no pun intended)as to what is going on so if you can find some one with some electrical knowledge it not too hard to sort out. The ideal with any type of isolator is to allow both batteries to charge while the engine is running and separate them when it's not so you don't kill the truck battery while you are parked. There are other little parts involved with the system too that will have to be investigated along with the isolator to make sure it all works correctly. Have you tried plugging the MH into a house outlet to see what happens? There is an on board charger that works if you are plugged in that makes power for your lights too. The monitor panels are notoriously inaccurate and should have no effect on your charging issue.
Posted 29 January 2011 - 05:00 PM
'92 Winnebago Warrior WT321RL
Posted 29 January 2011 - 06:18 PM
Posted 29 January 2011 - 07:41 PM
On my 88 Dolphin, the isolator relay in on the drivers side firewall.
Theres also a fuse on the drivers side fender (lower right of the photo)
and another fuse (2 fuses, one for the battery feed and one for the cigarette lighter) on the coach battery box. (you need to lift the cushions and the seat bottom to get to these.
Before you start checking fuses, I'd take a voltmeter and measure the voltage at the coach battery.
Measure it with the engine running (13.5 - 14.5 volts), and also without the engine running.(12.8 13.5)
(If you can plug in AC, also measure it with the AC plugged in and the engine NOT running (13.5- 14.5)
You may find that your coach battery simply wont hold a charge. The voltage readings will tell you this.
88 DOlphin 4 Auto
88 Dolphin 4 Auto
Posted 30 January 2011 - 08:30 AM
Posted 31 January 2011 - 04:38 PM
Posted 31 January 2011 - 05:32 PM
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