Cummins Onan 5500 Generator
FACTS: 2014 Toy Hauler purchased in August 2013 Camped with no issues through September Ran generator for 30 minutes in October Ran generator for 30 minutes in November I went out today to ru...
Forum Discussion
Hey Dan,
Try pulling the fuel line off of the carburetor and stick into a glass jar, then run the fuel pump to verify pump is working and fuel filter in not plugged. The glass jar will let you easily see impurities in the fuel such as water or air. Air would indicate a leak between the pump and the fuel in the tank. On a new unit such as yours, manufacturing debris in the tank and/or lines would be a likely cause of a clogged fuel filter this soon. If the generator has recognized a problem it will store a code, the codes are read from the light on the "Onan" start switch in the coach or on the generator itself. The light will flash two numeric sequences, for example: three flashes, pause, six flashes would be a code "36", a Google search will give you an explanation of the code(s). These gensets are good units but do not tolerate bad fuel, I have over 300 hours on my 6 yr old unit with no problems. Hope this helps, Mike
Try pulling the fuel line off of the carburetor and stick into a glass jar, then run the fuel pump to verify pump is working and fuel filter in not plugged. The glass jar will let you easily see impurities in the fuel such as water or air. Air would indicate a leak between the pump and the fuel in the tank. On a new unit such as yours, manufacturing debris in the tank and/or lines would be a likely cause of a clogged fuel filter this soon. If the generator has recognized a problem it will store a code, the codes are read from the light on the "Onan" start switch in the coach or on the generator itself. The light will flash two numeric sequences, for example: three flashes, pause, six flashes would be a code "36", a Google search will give you an explanation of the code(s). These gensets are good units but do not tolerate bad fuel, I have over 300 hours on my 6 yr old unit with no problems. Hope this helps, Mike
