RV generator fault codes
RV generators shut down and store a fault code for conditions like low oil, overspeed, high temperature or failure to start.
Onan
Fault 1
Engine over temperature — a first-level fault shown as one blink. On a liquid-co… Fault 2 (Low Oil)
Low oil pressure — a first-level fault shown as two blinks. The Quiet Diesel man… Fault 3
Service check — a first-level fault shown as three blinks. Three blinks is not t… Fault 4
Overcrank — a first-level fault shown as four blinks. The starter turned the eng… Fault 12
Overvoltage fault. The controller could not keep the output voltage at the rated… Fault 13
Undervoltage fault. The controller could not hold the generator's AC output at r… Fault 14
Overfrequency fault. The engine governor could not hold the rated output frequen… Fault 15
Underfrequency fault. The engine governor could not keep the engine spinning fas… Fault 19
Governor actuator fault. The controller detected an open or shorted circuit in t… Fault 22
Governor actuator overload. The controller had to hold the governor actuator at … Fault 24
Faulty engine temperature sender. After ten minutes of normal running the contro… Fault 27
Voltage sense fault. The controller was unable to sense the generator's output v… Fault 29
High battery voltage fault. The voltage across the genset's starting battery sys… Fault 31
Overspeed fault. The engine speed exceeded 3400 rpm, so the controller shut the … Fault 32
Low cranking speed fault. During start the engine cranked slower than about 180 … Fault 36
Engine Stopped fault. The engine stopped on its own without the controller comma… Fault 38
Overcurrent (field overload) fault. The generator saw excessive current from low… Fault 57
Overprime. A control switch — the one on the genset or the remote one inside the…
Engine over temperature — a first-level fault shown as one blink. On a liquid-co… Fault 2 (Low Oil)
Low oil pressure — a first-level fault shown as two blinks. The Quiet Diesel man… Fault 3
Service check — a first-level fault shown as three blinks. Three blinks is not t… Fault 4
Overcrank — a first-level fault shown as four blinks. The starter turned the eng… Fault 12
Overvoltage fault. The controller could not keep the output voltage at the rated… Fault 13
Undervoltage fault. The controller could not hold the generator's AC output at r… Fault 14
Overfrequency fault. The engine governor could not hold the rated output frequen… Fault 15
Underfrequency fault. The engine governor could not keep the engine spinning fas… Fault 19
Governor actuator fault. The controller detected an open or shorted circuit in t… Fault 22
Governor actuator overload. The controller had to hold the governor actuator at … Fault 24
Faulty engine temperature sender. After ten minutes of normal running the contro… Fault 27
Voltage sense fault. The controller was unable to sense the generator's output v… Fault 29
High battery voltage fault. The voltage across the genset's starting battery sys… Fault 31
Overspeed fault. The engine speed exceeded 3400 rpm, so the controller shut the … Fault 32
Low cranking speed fault. During start the engine cranked slower than about 180 … Fault 36
Engine Stopped fault. The engine stopped on its own without the controller comma… Fault 38
Overcurrent (field overload) fault. The generator saw excessive current from low… Fault 57
Overprime. A control switch — the one on the genset or the remote one inside the…