Common faults and solutions of smart toilets (2)

The previous article briefly introduced the basic components of the smart toilet, 5 faults and troubleshooting directions, and now we will continue to understand the common faults and treatment methods of the smart toilet.

6. When no one is sitting, press the arm, women only, dry and work, nozzle cleaning and lighting do not work

Inspection direction: seat gasket, control panel

Troubleshooting method:

Wipe the right side of the seat ring 20cm away from the front end with a dry soft cloth. If not, the seat washer sensor is conducting frequently and replace the seat washer. If it is type II, check whether the six-wire port is in good contact.

7. When sitting, press the arm, women only, dry does not work, nozzle cleaning and lighting work normally

Fault inspection direction: seat cushion, computer board, connecting wire

Troubleshooting method:

Put a dry soft cloth directly above the seat cushion sensor, and use a multimeter to bypass the 20V sensor line. If there is 5V, the sensor will be broken (change the seat ring) and the contact will be bad. If it is OV, the control board will be broken.

8. The low light keeps flashing (above 90S)

Fault inspection direction: reed switch of water tank, solenoid valve, contact between upper cover and installation strip, transformer, control board, ceramic inner water pipe

Troubleshooting method:

First look to see if there is water overflowing from the nozzle. If so, measure if the reed switch is connected. If there is no water overflow, it depends on whether the water pressure is greater than. If it is larger, use a multimeter to measure the DC12V voltage at both ends of the solenoid valve. If not, measure whether there is AC output at the two poles of the transformer. If the control board is normal, the resistance value at both ends of the solenoid valve should be around 30 ohms. If not, the whole machine is not in good contact with the mounting strip. If there is, the solenoid valve is smothered or the filter is clogged. If you hear running water, the water tube inside the ceramic may be broken.

9. Ultra-high water temperature alarm (buzzer continuously says dim light does not flash)

Fault checking direction: magnetic temperature sensitive switch, temperature sensor, control board

Drainage method:

Unscrew the drain bolt and feel that the water temperature exceeds 45 degrees to determine the quality of the temperature sensitive switch. After entering the water again, use the remote control to turn off the water temperature heating, and measure whether the heating plug of the water tank has 220V voltage. If there is, the computer board is broken. If there is no water temperature sensor, the resistance is normal. If it is not normal, replace the water temperature sensor (sometimes the 3062 on the computer board sometimes does not conduct, causing the water temperature to be too high, replace the computer board)

10. Stepping motor alarm

Fault inspection direction: stepper motor, optocoupler board, control board

Method of exclusion:

The stepper motor keeps running, unplug the stepper motor plug and measure 1 and the resistance value of other wires should be around 30 ohms. If it is normal, check whether the two poles of the multimeter transformer output AC 9V. If normal, the control board is bad.

11. Leakage alarm (buzzer calls continuously, low light flashes continuously)

Fault inspection direction: water tank, control panel, strong current connection, leakage protection plug, water leakage of the washer

Method of exclusion:

First check for leaks. If there is a solution, if the heating line of the water tank is not pulled out and turned on again, if it is normal, the insulation of the heating pipe of the water tank is not good. If the fault still exists, the control board is bad. If the leakage alarm stops suddenly during the water spraying process, if there is no water leakage, adjust the installation strip.

12. The water discharge motor does not return to zero alarm (5 calls every 3 seconds, 5 flashes of low light)

Fault inspection direction: water discharge motor, control board, hall board

Troubleshooting method:

First, check that the magnet on the cam corresponds to the Hall. If not, measure whether there is DC12V voltage at the outlet motor plug. If there is, the motor is bad, if not, the control board is bad. If the motor keeps turning, check whether the two ends of the Hall board line are normal. If there is always 5V voltage, the Hall board is broken.

13. Not dry (other normal)

Troubleshooting direction: dry motor, control board

Troubleshooting method:

After confirming the correct seat, press the dry button and measure whether there is DC12V voltage at the dry motor plug. If there is, the dryer motor is bad, if not, the control board is bad.

14. Just press arm flush or women's pump to work together

Fault inspection direction: water pressure, booster device, control panel, ceramic inner water pipe, solenoid valve

Troubleshooting method:

After confirming the correct seat, unplug the water pressure switch valve line on the control panel according to the cleaning function. If the pump is still working, the control board is bad. If the water pump stops working, the water pressure is not enough. Check the filter. If the solenoid valve is normal, check the water pipe for pressure or rupture.

15. The status indicators are all on, but not working

Troubleshooting directions: panels, cleaners, transformers

Troubleshooting method:

First pull out the panel to see if it is normal. If the panel is OK, the panel is shorted. If the phenomenon is still there, check the cleaner. If the optocoupler line is normal, the cleaner will be broken.

16. The washing machine is working abnormally, and the buttock tube or the special tube for girls always sticks out automatically

Fault checking direction: cleaner ceramic spool, optocoupler plug

Troubleshooting methods: First, the ceramic valve core is stuck and cannot be ejected, and second, the optocoupler plug is in poor contact.

17. The water filling of the water tank is normal, the cleaning function does not produce water, and the low light suddenly dims when drying

Fault checking direction: the socket voltage of the user's home.

Troubleshooting method: Check the user's total power supply connection board.

18. The status indicator lights are all on, and the fault remains the same when the board is replaced. It is normal to pull out three heating wires, but it does not work when one is plugged in.

Fault checking direction: user socket

Troubleshooting method:

Debug sockets in other rooms.

19. Unscheduled switch on and off

Fault checking direction: panel, panel connector

Troubleshooting method:

If the discharge panel is normal, it may be that the panel is short-circuited by water, or the panel is in poor contact with the wiring.

20. Does not release water automatically

Troubleshooting method:

First, check whether the thermostat automatically releases water, switch it on again, and check whether the status indicator is on. If the setting does not automatically release water, check whether the motor and Hall plate are good.

Through the understanding of the above 20 fault phenomena and troubleshooting methods, I believe that everyone has a basic troubleshooting idea for the common faults of the smart toilet and can accurately report the fault point.

With the improvement of people's quality of life, the quality of refrigerators is getting higher and higher. As one of the important components of smart toilets - DC brushless water pumps, the corresponding quality requirements are getting higher and higher. Our company has a DC The technicians who have been developing brushless water pumps for many years can provide customers with special customized services, which are more in line with the needs of customers' products. If you have any needs, please consult our Foshan Shunde Zhuogao Motor Manufacturing Co., Ltd. E-mail: zhuogaomotor@yeah.net

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