Scott, have you tried starting it at the generator not using the remote panel?
Do you hear anything?
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Are you sure you have a fault code 33?
look at this from the Onan manual.
Fault Codes
The genset controller provides extensive diagnostics by causing the status indicatorlight on the Control Switch to blink in a coded fashion.
Following a fault shutdown,the indicator light will repeatedly blink one, two, three or four blinks at a time.
• One blink indicates shutdown due to high engine coolant temperature.
• Two blinks indicates a low oil pressure fault.
• Three blinks indicates a service fault.
Press Stop once to cause thetwo-digit, second-level fault code to blink. (Pressing Stop again will stop theblinking.)
The two-digit code consists of 1, 2, 3, 4 or 5 blinks, a brief pause,and then 1 to 9 blinks. The first set of blinks represents the tens digit and thesecond set of blinks the units digit of the fault code number. For example,Fault Code No. 36 appears as:blink-blink-blink—pause—blink-blink-blink-blink-blink-blink— long pause—repeat• Four blinks indicates that cranking exceeded 30 seconds without theengine starting.Note: Fault Code Nos. 3 and 4 are first level faults.
Avoid interpreting themas second-level Fault Code Nos. 33 and 44, which have not been assignedas fault codes.Restoring Fault Code Blinking – The fault code stops blinking after fiveminutes (15 minutes, Series HGJAA). Press Stop three times within five seconds torestore blinking. Note that the last fault logged will blink, even after thecondition that caused the shutdown has been corrected.
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Onan manuals.
Part 2 of the service manual may be too large for the forum, pm me an email.