Onan Micro 4000 Generator Won't Start
Generator was working fine, but I turned it off and now it won't start. Seems like a low battery, but they're full. Almost thinking a wire fell off, but don't see anything obvious. The lights on th...
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The odds are FAR GREATER that the ONAN is powered by the Coach/House Battery than by the Chassis/Engine Battery.
It's odd, but that little 4KY is VERY demanding on the House Battery. I've had the House battery seem good, find it didn't crank the ONAN. Replaced House Battery and all good including ONAN. Actually tested ONAN getting ready for a trip, found it wouldn't crank. Stopped at Walmart on the way to the campground and got a battery. Our coach has a single 12V Deep Cycle (trolling motor) House Battery.
Check all Battery Connections from House Battery to ONAN, including GROUNDS.
Try this: Put your meter across the House Battery and try to crank the ONAN. I think you'll find that "Load Test" will pull your House Battery Voltage down into Single Digits.
It's odd, but that little 4KY is VERY demanding on the House Battery. I've had the House battery seem good, find it didn't crank the ONAN. Replaced House Battery and all good including ONAN. Actually tested ONAN getting ready for a trip, found it wouldn't crank. Stopped at Walmart on the way to the campground and got a battery. Our coach has a single 12V Deep Cycle (trolling motor) House Battery.
Check all Battery Connections from House Battery to ONAN, including GROUNDS.
Try this: Put your meter across the House Battery and try to crank the ONAN. I think you'll find that "Load Test" will pull your House Battery Voltage down into Single Digits.
