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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 12592
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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I have a 75 kw unan in my alfa motor home. its been working

Customer Question

I have a 75 kw unan in my alfa motor home. its been working fine and it just shut it self off.
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: I checked to oil, its fine and up to par
JA: Do you plan on doing the work yourself?
Customer: I put a little coolant in it
JA: Anything else we should know to help you best?
Customer: I restarted it and it runs for 3 to 5 minutes and charges while running but then shuts down again
Submitted: 1 month ago.
Category: Small Engine
Expert:  Hank F. replied 1 month ago.

What is the model number of the genset?

Customer: replied 1 month ago.
04270-0
Expert:  Hank F. replied 1 month ago.

That is not an Onan - it is a Generac.

Generac diesels are very hard to work on, and I just can't justify my time for the offer.

I will opt out and see if someone else might help you.