Trouble with Onan 5500
My Onan Marquis Gold 5500 LP generator starts great, runs maybe 10 minutes, starts popping (like backfire) winds down and quits running. It'll start ok again then repeat. Unit only has 22 hours run ...
Forum Discussion
I'll SWAG a propane regulator/air in the line. Last time I ran mine it started with the popping you describe but then smoothed out after a minute or so. I chalked it up to air in the propane line. We'll see how it acts the 1st of next month when I exercise it again.
