speck Report post Posted July 3, 2019 My 7500 Onan generator was running and then stopped. Light on the switch blinks 3 times indicating to service generator. What all is done when servicing and how hard. Share this post Link to post Share on other sites
elkhartjim Report post Posted July 3, 2019 This should help. https://cdn.ltvdns.com/leisurevans.com/owners/3rdparty/Cummins-Onan-RV-Generator-Handbook.pdf Thi Share this post Link to post Share on other sites
jleamont Report post Posted July 3, 2019 Speck, what blink codes were after the three? Its odd that it just shutdown for routine maintenance. Normally there is something wrong for them to shut down. The common items; Low fuel level. Operating temperature is too high i.e. belt broke. Low motor oil level low coolant Either way it will display blink codes to help guide you in the proper direction. Share this post Link to post Share on other sites
wildebill308 Report post Posted July 3, 2019 Speck, on page 30 of the manual that Jim linked to tells how to read the codes and what they mean. Let us know what you find. Bill Share this post Link to post Share on other sites
elkhartjim Report post Posted July 3, 2019 I saw on another forum he resolved his problem. He had less than a 1/4 tank of fuel and it took awhile to purge the air. Share this post Link to post Share on other sites
rayin Report post Posted July 3, 2019 7 hours ago, elkhartjim said: I saw on another forum he resolved his problem. He had less than a 1/4 tank of fuel and it took awhile to purge the air. Thanks for updating us Jim. Share this post Link to post Share on other sites
