The Engine Circuit Board (PCB is a generator-set controller. It is used on generator sets from Generac, including the 4700.
| Symptom | Cause | Remedy |
|---|---|---|
| 7.5A (F1) Fuse Blowing | INSTALL NEW 7.5 AMP FUSE CHECK THAT FUSE HOLDER IS NOT GROUNDED CHECK REMOTE HARNESS WIRE 15 FOR SHORT TO GROUND CHECK CHOKE SOLENOID AND STARTER CONTACTOR CHOKE SOLENOID PIN LOCATION J1-2 TEST TO GROUND STARTER CONTACTOR PIN LOCATION J1-1 TEST TO GROUND CHECK WIRE 56 SHORT TO GROUND CHECK WIRE 90 SHORT TO GROUND | INSTALL NEW 7.5 AMP FUSE CHECK THAT FUSE HOLDER IS NOT GROUNDED CHECK REMOTE HARNESS WIRE 15 FOR SHORT TO GROUND CHECK CHOKE SOLENOID AND STARTER CONTACTOR CHOKE SOLENOID PIN LOCATION J1-2 TEST TO GROUND STARTER CONTACTOR PIN LOCATION J1-1 TEST TO GROUND CHECK WIRE 56 SHORT TO GROUND CHECK WIRE 90 SHORT TO GROUND |
| Engine Will Not Crank | REPLACE FUSE BLOWS REPLACE ENGINE CONTROLLER CIRCUIT BOARD REPLACE DEFECTIVE SWITCH REPLACE BAD STARTER CONTACTOR REPLACE STARTER MOTOR IF DEFECTIVE |
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.