How To Get Onan Generator Codes. Turn off the breakers Step 2. Call the Cummins Onan Customer Response Center at 1-800-888-6626.

Hold down StopPrime and it should show a steady red light. September 20 2021 by Mike Lee. Onan generator fault code 36.
If not repeat above.
Last weekend our generator Model 10HDCAA turned off flashing code 36. Last weekend our generator Model 10HDCAA turned off flashing code 36. Onan QG 5500 generator has a simple yet elegant way of displaying fault codes an indicator light is installed in the STOPPRIME button and it blinks the code This code will be blinking for five minutes and then stop so you shouldnt be alarmed if you do not initially see it you can easily retrieve it. Your Onan generator wont start and the light blinks 3 times again and again.

