| Faults | Reasons | Manifestation | Solution |
| Cannot open | 1. The inlet valve is unopen | The solenoid coil is working but has no water flow | Open the inlet valve |
| 2. The controller has a command fault | The solenoid coil is unworking, the multiline system can open the valve by using the test contact | Check the controller’s procedural setting | |
| 3. The control circuit is breakdown | The controller screen shows a warning message; The solenoid coil is unworking; The valve works normally when you loosen the solenoid assembly manually | Use the multimeter to check if the control line is a short circuit or open circuit and repair | |
| 4. The flow handle is unopen | The controller screen shows valve is open; The solenoid coil is working; Cannot open the valve even when you loosen the solenoid assembly manually | Twist the flow handle to a suitable position | |
| 5. The solenoid coil is breakdown | The controller screen shows a warning message; The solenoid coil is unworking; The valve works normally when you loosen the solenoid assembly manually; The control line is tested normally | Replace the new solenoid coil | |
| 6. The pipe is plugged | The controller screen shows valve is open; The solenoid coil is working; Cannot open the valve even when adjusting the flow handle or loosening the solenoid assembly manually | Clean the impurities in the pipe | |
| 7. Wrong installing direction | The solenoid valve is closed when the controller turns on, and the solenoid valve is open or occasionally open when the controller turns off | Reinstallation | |
| Cannot close | 1. The solenoid coil is loosened | The solenoid coil is working; The solenoid coil connector has overflowed | Tighten up the solenoid coil and replace the plug seal |
| 2. The pipe is plugged or broken | The controller cannot close; But can close by using a flow handle | Clean the impurities in the pipe | |
| 3. The flow handle is twisted to the maximum | The controller can close by reducing the flow handle appropriately | Twist the flow handle to the appropriate position | |
| 4. The diaphragm is broken | The valve cannot close even when twisting the flow handle to the minimum | Replace the diaphragm | |
| 5. Impurities are under the diaphragm | The valve cannot close even when twisting the flow handle to the minimum | Open the valve and clean the impurities | |
| 6. Wrong installing direction | The solenoid valve is closed when the controller turns on, and the solenoid valve is open or occasionally open when the controller turns off | Reinstallation |
Post time: Jan-08-2024