Onan Generator Fault Codes

148 documented Onan fault codes — causes, diagnosis and repair steps for each, drawn from OEM service literature.

Air Intake

00-0AP00-0AR00-0AV

Cooling

00 - 0AD00 - 0AH00 - 0AN00 - 0AS00 - 0AZ00 - 01000 - 01500 - 02200 - 03700 - 04400 - 04600 − 0AS00 − 0AZ00 − 0CM00 − 01000 − 01400 − 02200-0AD00-0AI00-0AN00-0AS00-0AU00-0CF00-0CV00-01000-01400-01500-02200-04600-04700-04812421222324384345485758611451461514154411472DS1DS2DS3DS19F1F2FAULT CODE 1FAULT CODE 2FAULT CODE 4HETHIGH ENGINE TEMPERATUREHIGH ENGINE TEMPERATURE LAMPLETLOPLOW ENGINE TEMPERATURELOW OIL PRESSURELOW OIL PRESSURE LAMPO.C.O.S.OVERCRANKOVERCRANK LAMPOVERSPEEDOVERSPEED LAMP

Electrical

00 - 0AG00-0AB00-0AG00-0AH00-0AM00-0AZ1213141527293235364421312131714421446

Emissions

00 − 0AA00 − 04100 − 04600-0AA11

Fuel

00 - 04100-0AC00-041SDC BAR 00 - 0AC

General

00-0BT00-04200-0453374142F6SDC BAR 00 − 0ADSDC BAR 00 − 0AGSDC BAR 00 − 042SDC BAR 00-0ACSDC BAR 00-033

Lubrication

00-055717CODE NO. 2

Sensors

00 - 0AB00 − 0AB

Speed

00-0AQ00-02100-02400-02800-03100-03300-03700-04000-0442526461212343592335FAULT CODE 7OCSDC BAR 00-027

Starting

00-0BA00-0BB00-02600-027

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