The Automatic Voltage Regulator (AVR) is a generator-set controller. It is used on generator sets from Firman and Stamford/AvK, including the P03613.
Used across brands: Firman, Stamford/AvK
Also fitted to: Stamford/AvK SX460, Stamford/AvK SX460 AUTOMA.
| Symptom | Cause | Remedy |
|---|---|---|
| Engine is running, but no AC output is available. | 1. Circuit breaker is open. 2. Fault in generator. 3. Poor connection or defective cord 4. Connected device is bad. | 1. Reset circuit breaker. 2. Contact authorized service facility. 3. Check and repair. 4. Connect another device that is in good condition. |
| Engine lacks power. | 1. Load is too high. 2. Dirty air filter. | 1. Don't Overload Generator 2. Replace air filter. |
| Engine runs good at no-load but “bogs down” when loads are connected. | 1. Short circuit in a connected load. 2. Engine speed is too slow. 3. Shorted generator circuit. | 1. Disconnect shorted electrical load. 2. Contact authorized service facility. 3. Contact authorized service facility. |
| Engine shuts down and yellow CO fault light blinking. | 1. CO system fault | 1. Contact authorized FIRMAN service facility. |
| Engine shuts down when running. | 1. Out of gasoline. 2. Dirty air cleaner. 3. Low oil level. 4. Clogged or dirty fuel filter. | 1. Fill fuel tank with gasoline. 2. Clean or replace air cleaner. 3. Fill crankcase to proper level or place generator on level surface. 4. Contact authorized service facility. |
| Engine will not start; starts and runs rough or shuts down when running. | 1. Fuel selector switch set to OFF (O) position. 2. Low oil level. 3. Dirty air cleaner. 4. Out of gasoline. 5. Stale gasoline. 6. Spark plug wire not connected to spark plug. 7. Bad spark plug. 8. Water in gasoline. 9. Flooded. 10. Excessively rich fuel mixture. | 1. 'ON (l) position. Set fuel selector switch to '2. Fill crankcase to proper level or place generator on level surface. 3. Clean or replace air cleaner. 4. Fill fuel tank with gasoline. 5. Drain fuel tank and carburetor; fill with fresh gasoline. 6. Connect wire to spark plug. 7. Replace spark plug. 8. Drain gas tank and carburetor; fill with fresh gasoline. Wait 5 minutes and re-crank engine. 9. Contact authorized service facility. |
| Engine“hunts”or falters. | 1. Carburetor is running too rich or too lean. 2. Clogged or dirty fuel filter. 3. Clogged or dirty fuel filter. 4. Clogged spark arrester. | 1. Contact authorized service facility. 2. Clean or replace fuel filter. 3. Clean or replace fuel filter. 4. Clean or replace spark arrester. |
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.