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: 14994
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

After tune up, output is some 190-200v per leg. why is

Customer Question

after tune up, output is some 190-200v per leg.
why is output so high?
Submitted: 1 year ago.
Category: Small Engine
Expert:  Hank F. replied 1 year ago.

What is the model number of the genset?

There can be several things that can cause this: engine running too fast, bad voltage regulator or controller (depending on what model it is), damaged stator etc.

Customer: replied 1 year ago.
SN K000176764
Expert:  Hank F. replied 1 year ago.

Test the frequency. It should be set to about 62 Hz, with no load on the genset.

If the frequency is good, the voltage regulator is bad and will need to be replaced.