The Katolight Automatic Start controls is a generator-set controller. It is used on generator sets from Katolight, including the KLAS 103, KLAS 110 and KLAS 133.
| Symptom | Cause |
|---|---|
| Fail to crank | Blown fuse |
| Should unit fail to crank | Battery |
| Unit cranks but does not start | Fuel and fuel supply lines for dirt or leaks |
| Unit cranks continuously (over 100 seconds) | Time delay relay 9 - may be defective |
| Unit cranks, does not start | Low battery Voltage at start solenoid Voltage on Terminal No. 10 Fuel supply Voitage on Terminal No. 3 |
| Unit starts but starter does not disengage | All leads in crank disconnect circuit for continuity |
| Unit starts, but starter does not disengage | Overcrank = May not have received crank disconnect signal on Terminal No. 10 — defective timer. Low oil = Low oil level in crank-case — oil pump failed — defective switch. High water = Low water level in radiator — thermostat closed — broken fan belt — restricted air flow through radiator — ambient temperature too high — Defective switch. Overspeed = Lost governor control — defective switch. |
| Unit will start then fail | Loss of fuel Failure lights Loose or open connections Voltage on Terminal No. 10 Malfunctioning starter |
| Unit will start, then fail | Fuel and fuel supply filters |
Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Aggregated from the service documentation of generator sets built on this controller.