We are leaving on a trip tomorrow and of course have not checked to see if the Onan generator will crank. (It won't) Actually it cranks and cuts off, the initial code is 3 flashing lights, and the secondary code is a 36. It's getting fuel and it's getting spark. Help! As a backup plan, we do have another generator is it possible to wire that one in? (my husband thinks probably not, but I thought I'd ask, lol!)