All ActivityMost RecentMost LikesSolutionsRe: Onan diesel generator won't crank, it only clicksYes, the new diesel generator is new to me. I had no idea that the rocker switch had to be held down so long. It started up after holding the rocker down for 45 seconds. In the last month, it started after 5 seconds or so. Thanks for the help!Onan diesel generator won't crank, it only clicksI have a Onan quiet Diesel 6000 that won't start. The coach batteries are charged with a 12.8 volts. When I crank the genny, the red starter switch continuously blinks red. The voltage drops to 11.8 while cranking. The only thing that happens is- a continuous clicking. Which I believe is the fuel pump. I've checked the 3 fused under the access panel. Any thoughts? I can't figure this one out. Thank you for your help!!!