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: 14915
Experience:  Certified on Onan and Generac generators
Type Your Small Engine Question Here...
Hank F. is online now
A new question is answered every 9 seconds

Will generac 20 kw run auto if yellow light says check

Customer Question

will generac 20 kw run auto if yellow light says check battery
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: one week it starts man. but it did not come on for the weekly check
JA: Do you have fuel in the tank? If so, is the shut-off valve open and the fuel clean?
Customer: its nat gas and it does run when i start it manualy the yellow light says check battery
JA: Do you plan on doing the work yourself?
Customer: yes
JA: Anything else we should know to help you best?
Customer: no the generator has worked fine for two years just have it for emergency never had to use it
Submitted: 14 days ago.
Category: Small Engine
Expert:  Hank F. replied 14 days ago.
Hello, my name is ***** ***** I am going to assist you with this.
As long as the battery has enough power to start the genset, yes, it will run just fine.
The yellow light is just a warning that something needs attention.
It may be because the battery is getting low on voltage, or it may just be time for its yearly inspection and tune up.
Customer: replied 14 days ago.
did not explain why it does not start for the weekly test. i guess i will call a technician to come and look at it. i do expect a full refund to my credit card, thanks
Expert:  Hank F. replied 14 days ago.
Your question was if the genset would run in auto if the yellow light was on. You did not ask why it would not exercise.
Reset the exercise timer and see if it works then. Sometimes the exercise timers just lose their memory.