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Ask Hank F. Your Own Question
Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 14489
Experience:  Certified on Onan and Generac generators
19372534
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I have a onan 5500 that runs about 30 min then shuts will

Customer Question

Hi I have a onan 5500 that runs about 30 min then shuts will not pump fuel until engine cools down I get a fault code 33 and have over a half tank of fuel
JA: Thanks. Can you give me any more details about your issue?
Customer: It starts easily when changed fuel filters and made sure that it is full of oil tried cranking it when engine is hot with fuel line disconnected and I get no fuel
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Submitted: 8 months ago.
Category: Small Engine
Expert:  Hank F. replied 8 months ago.

Your fuel pump is most likely bad.

What is the model number of the genset?