like any other type of machinery yes it does reguire maint. my question to you is that you said it was up in a crawl space above the cooler thru a small door; what type of ventilation is up there and how warm does it get up there? could it possibly be too warm and causing the generator to shut down? when was the last time the unit was serviced new intake filters etc. and the tank should be checked and the moisture purged periodically it would have to have one heck of a lot of moisture in there before it affected your pour that way
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