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Induction urinals are based on the principle of infrared reflection. When the human body is standing in the infrared region of the urinal, the infrared rays emitted by the infrared emission tube are reflected by the human body to the infrared receiving tube, and the signals processed by the microcomputer within the integrated circuit are sent to the pulse. Solenoid valve, solenoid valve to accept the signal and press the specified instruction to open the valve core to control the urinal water; when the human body leaves the infrared sensing range, the solenoid valve does not receive the signal, and the solenoid valve core is reset by the internal Spring to control the urinal. Turn off the water, flush time and off time according to the set instructions.
1. There is no water in the sensor (indicator light): Check if the filter is clogged. If there is cleaning, then open the solenoid valve to clean it, and then replace it by hand. If the solenoid valve spool does not work (open And open and close) sound, replace the solenoid valve coil.
2, there is no induction (indicator does not light) normal water: check the power is normal, if the power is normal, after the induction, the indicator light does not shine, replace the sensor circuit board.
3, there is induction (indicator light) normal water: first check the influent filter for impurities, if not, on the hand after induction, listen carefully to the solenoid valve spool (with open and close sound, if there is work Then, remove the internal cleaning of the solenoid valve and replace it as it is.
4, there is induction (indicator light) water volume water: clean the filter and solenoid valve, and then replace the original.
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