Question about cooling when exercising my Onan 4000. 80 degree day, parked, and I want to exercise the Onan. I'll plan to run it for like an hour. Should I leave the cover on or off? Should I leave the outer door open or closed?
We always start ours and let it run for a few minutes to warm up before putting a load on it. We run it for about an hour with a load, and then remove the load and let it cool and come back to an 'idle speed' before shutting it down until next month.
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