If your Servo Voltage Stabilizer does not operate properly, please check the following points before calling for service
| SYMPTOM | CAUSE | REMEDY |
| No output | No input supply | Call your Electrician |
| Incoming voltage is out of range. Servo may be in cut-off mode. | Use By-Pass mode | |
| MCB / Fuse may be shut off / blown Due to Over Loading | Check your load | |
| High / Low Output Contact our Service Voltages | Input Voltage out of range | Contact our Service Engineer |
| Problem in Control Circuit | Contact our Service Engineer |