How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Hank F. Your Own Question
Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 14489
Experience:  Certified on Onan and Generac generators
19372534
Type Your Small Engine Question Here...
Hank F. is online now
A new question is answered every 9 seconds

My Onan commercial 4500 fires up and runs when you push the

Customer Question

My Onan commercial 4500 fires up and runs when you push the start button/rocker switch but dies when the rocker switch returns to neutral.
Submitted: 2 months ago.
Category: Small Engine
Expert:  Hank F. replied 2 months ago.

The most common cause of this is that the genset is no longer producing any electricity, but low oil pressure can also cause it.