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Ask Hank F. Your Own Question
Hank F.
Hank F., RV tech - emphasis on gensets
Category: RV
Satisfied Customers: 14487
Experience:  RV tech since the beginning of the millenium.
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My onan hdkak 8000 will start but not stay running, flashes

Customer Question

My onan hdkak 8000 will start but not stay running, flashes 3 times and gives a service fault of 15 even when breaker is disconneted. Any ideas, inverter? Stater maybe.
Submitted: 1 year ago.
Category: RV
Expert:  Hank F. replied 1 year ago.
Hello!
Thank you for requesting me.
You have only provided a partial model number.
What is the full model number, exactly as it is written on the data plate?
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Customer: replied 1 year ago.
It is a RV QD8000, model 8HDKAK-1046L, serial K090065504. It is in my 2010 Fleetwood Discovery
Expert:  Hank F. replied 1 year ago.
Code 15 on this unit is Inverter Under Frequency. It is bad news.
The only check you can do is to shut off the breakers at the genset, so no outside loads can interfere.
Start the unit.
If it continues to run now, you have a problem in your coach.
If it still shuts off, your inverter is bad, and will need to be replaced. This inverter is about $2000.
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Expert:  Hank F. replied 1 year ago.
Was this what you wanted to know?
.