Forum Discussion
blkfe
Jun 04, 2010Explorer
Max49 wrote:
I've had my 3500 Champion for a few months now and really like it. It can run 2 electric heaters but I'm not sure if I had them both on the 1500 W setting, plus the converter to keep the batteries charged.
Over the Memorial Day weekend , I used it to power one 13,500 BTU Carrier Air V air conditioner. It seemed to have a terrible time starting the AC when the compressor kicked in. So bad that twice I quickly turned the AC off for fear of damage to the AC. I decided to use the 'onboard' Onan 5500 gen. I was so disappointed.
Several hours later, I decided that if the 3500 running/ 4000 Peak rated Champion could not run one 13500 AC unit , it was terribly, deceptively over rated. I already suspected that it was the same generator that other mfgrs rated at 3000 watt; but that should still be able to start one AC unit with nothing else on, IMO.
Then I decided to turn the AC off, turn the Onan off, and put the Champion in a 'do or die' situation. I turned the AC on and inside the MH I couldn't hear the Champion but the AC unit sounded very much like it was going stall out but then it caught it's breath, and starting pumping out cold air. My wife had it running for several hours and it seemed to be fine.
Has any one else's 3500 Champ had trouble starting a 13500 AC unit? Is any damage being done to the genny or the AC unit while it is struggling to get started?
I have an older rv with a 13.5 ac. My champion wont start the ac unless I put the fan on manual and use the thrmostst to engage the compressor only. Doing this way has ALWAYS worked. I,m guessing starting both the fan motor and compressor motor at the same time requires too much inrush current.
Brad
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