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Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 14440
Experience:  Certified on Onan and Generac generators
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I have an Onan MDKBS-5733219 and am getting a gh exhaust

Customer Question

I have an Onan MDKBS-5733219 and am getting a high exhaust temp fault at intermittent times. I checked the impeller and its fine. Where should i check next?
Submitted: 3 months ago.
Category: Small Engine
Expert:  Hank F. replied 3 months ago.

The next thing to check is the connections at the temp switch. Make sure they are not loose or corroded.

Check the wiring at the control board. Make sure the plugs are firmly connected.

Flush the heat exchanger. You may have debris in there, causing intermittent cooling flow.

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