Troubleshooting
6| Code | Symptom | Cause | Remedy |
|---|---|---|---|
| 379 − OVER CURR | Output Overload | Output current is excessive. Charger control may be failing. | Cycle through the Setup menus to try and clear the fault. If the fault returns, the charger control may have failed. |
| 441 − LOW BATT VOLT | Low Battery Voltage | Connect the battery. | |
| 442 − HIGH BATT VOLT | High Battery Voltage | 1. A 12V battery is connected but the charger is set for 24V charging. 2. Large load dump may have caused momentary voltage rise. | |
| 2331 − LOW AC VOLT | Low Input Voltage | AC input voltage is more than 10% below nominal rated voltage. | |
| 2358 − HIGH AC VOLT | High Input Voltage | AC input voltage is more than 10% above nominal rated voltage. | |
| 2263 − HIGH BATT TEMP | Battery Temp above 55 degrees C | 1. Battery’s ambient temperature is too high. 2. Possible shorted cells within the battery is causing an excessive battery temperature increase. |
Symptom → cause → remedy extracted from this unit’s service/owner documentation; verify against the official manual before servicing.
About
Cummins/Onan OTECA — transfer switch. Specifications and parts compiled from manufacturer documents.