Onan QD6000 dies under load

[dufferdj]

Our Tiffin Breeze (diesel) has an Onan QD6000 that will run for a while (about 1 hour) and then it dies while being used to run the AC. Once to goes dead it takes a relatively long time for it to start back up. I'm trying to get the code to determine the problem, but this morning the generator has run for 2 hours with the AC on and no problems --- but it has not been as hot as when we were having the problems last week. Any suggestions?

[K_Charles]

That is water cooled, when did you last clean the radiator?

[rbonecrusher]

Check fuel lines all the way back to your tank, you may have a rubber line that is collapsing.
Ray

[Big_Katuna]

Have you replaced the fuel filter lately?

Tiffin used to add one in line with the fuel line that didn’t always get changed.