Fault phenomenon | Possible cause | Overhaul method |
Do not work after turning on the power supply, no indication of work indicator |
| 1. Connect the power supply, deal with the bad part 2. Close the circuit breaker 3. Find the cause, replace the mental fuse. |
No automatic operation |
| 1.Overhaul or replace automatic switch 2. Reconnect line 3. according to wiring diagram. Readjusting the effective distance of the sensor |