ONAN QD7500 Diesel Generatir

[toddmin]

Hey everyone hope everyone is having fun in the sun. I am having a issue with my Onan generator just shutting off and giving me a code 32. I checked every electrical connection clean them up replaced all batteries.

The generator will start and run all day with no load when I start to click breakers on when I get to the AC breakers it'll shut off.

Any suggestions some say it's the brushes and clips in order to service the brushes. Do I have to remove the generator completely from the chassis to service the brushes?

[pghbob]

a tech once told me that if your generator is stalling there's usually only one of two issues - fuel and overheating. Sounds like your may be overheating when a load is applied. Have you checked your air filters, etc? Good luck let us know how it turns out.

[pghbob]

PS - if you google "onan code 32" you'll find a bunch of people that have had the same issue. Sounds like it has something to do with "low cranking speed" - which could be caused by low oil pressure or airflow. Lot's of good stuff on this issue. Good luck!

[toddmin]

Thank you. I've went thru my whole system. New batteries. (Batteries were 6 years old). Oil and filter changed air filter replaced. All electrical connection are cleaned and tight.
Replace coolant with new 50/50 mix.

Pulling generator out to replace belt and look at brushes and slip rings.