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I have a cummins onan diesel 3200 generator on my RV which…

Customer Question
I have a cummins...

I have a cummins onan diesel 3200 generator on my RV which has been sitting idle for several months. It will start and run ok but when I put a load on it it will shut off and give the message that it is overloaded.

Mechanic's Assistant: Do you have fuel in the tank? If so, is the shut-off valve open and the fuel clean?

Yes plenty of fuel,

Mechanic's Assistant: Do you plan on doing the work yourself?

If possible

Mechanic's Assistant: Anything else we should know to help you best?

Could the fuel filter be causing this issue. The unit only has 150 hours on it

Submitted: 2 months ago.Category: Small Engine
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Answered in 4 hours by:
5/29/2018
Technician: Hank F., Technician replied 2 months ago
Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 15,995
Experience: Certified on Onan and Generac generators
Verified

Hello, my name is ***** ***** I am going to assist you with this.

What are the model number and serial number of the genset?

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Customer reply replied 2 months ago
model 3.2HDZAA-6508B SERIAL B11F002716
Technician: Hank F., Technician replied 2 months ago

Thank you.

Yes, a bad fuel filter could definitely be causing this issue. If the engine can't get enough fuel, it can't develop full horsepower, so it can't pull a full load.

A restricted air filter will also cause the exact same affects.

Unless they are new, start with changing the air and fuel filters.

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