Smart toilets are generally rich in functions. For example, they may be able to flush automatically, and can be heated and heated. However, if a series of malfunctions occur in the smart toilet, how should it be repaired at this time? Today I will tell you What is recommended is the method of repairing smart toilets, as well as common cause judgments and analysis instructions, which you can use as a reference.
What to do if a smart toilet fails? Smart toilet repair methods
Summary of common fault repair methods for smart toilets：
1.Fault phenomenon: None
Inspection parts (power socket, leakage protection plug, power button, mounting strip contact, transformer primary pole, panel, computer board)
Troubleshooting method: Is there power in the power socket? If so, check whether the reset button of the leakage plug is pressed and whether the indicator light displays? Is the power supply of the whole machine pressed? Are the upper cover and the mounting strip in good contact? Is there a 7V output on the secondary pole of the transformer? ?Is the panel short-circuited by water? If the above is normal, the computer board is broken.
2.Fault phenomenon: water is not hot (others are normal)
Inspection parts (remote control, water tank heating pipe, water temperature sensor, thermal fuse, computer board)
Troubleshooting method: Is the temperature of the remote control set to normal temperature? Sit down and wait for 10 minutes. If there is no heat, please unplug and measure the resistance at both ends of the water tank heating wire to be about 92 ohms. Then measure whether there is a resistance of about 92 ohms at both ends of the heating tube. If If not, the fuse is broken. Measure the resistance at both ends of the temperature sensor (25K~80K) and it is normal. If both are normal, the computer board is broken. For example, if the water tank is replaced, check whether it is normal after replacement. If the water keeps heating, the computer board is broken and must be replaced together.
3.Fault phenomenon: Seat temperature does not heat (others are normal)
Check parts (remote control, seat heating wire, temperature sensor, computer board, connectors)
Troubleshooting method: Use the remote control to set the heating status (sit and wait for 10 minutes). If there is no heating, please unplug the seat heating wire and measure the resistance at both ends to be about 960+/-50 ohms. If there is no open circuit of the heating wire, measure the temperature. The resistance at both ends of the sensor (5K~15K) is normal. Is the connector in good contact? If it is normal, the computer board is broken. If the seat is replaced, check whether it is normal after replacement. If the seat keeps heating, the computer board is broken and must be replaced at the same time.
4.Fault phenomenon: The air temperature is not hot (others are normal)
Inspection parts: (drying device, computer board)
Troubleshooting method: Measure whether there is 89+/-4 ohm resistance at both ends of the drying electric heating wire frame. If there is no resistance, the drying device is broken. If there is, confirm that you are seated correctly and press the dry button to measure whether there is 220V voltage at both ends of the heating wire frame socket. If there is no voltage, the computer board is broken. If the drying device is replaced, the computer board should be carefully inspected. Note: If there is a short circuit between the motor slots, sometimes the heating wire frame will open due to the increase in load and the rotation speed slows down, which will also cause the computer board D882 to burn. In that case, please replace the computer board and drying device at the same time.
5.Fault phenomenon: No deodorization (others are normal)
Inspection parts: (deodorizing fan, computer board)
Troubleshooting method: After confirming that you are seated correctly, use a multimeter to test the DC 20V setting. The deodorizing fan socket should have 12V voltage. If the fan is broken, if there is no computer board broken,
6.Fault phenomenon: When no one is sitting, pressing the buttocks, only for women, drying can work, but the nozzle cleaning and lighting do not work.
Inspection parts: (seat ring, computer board)
Troubleshooting method: Wipe the right side of the seat 20CM away from the front with a soft rag that is not dry. If it is still not normal, it means that the seat sensor is often on. Replace the seat. If it is type II, check whether the six-wire port is in good contact. .
7.Failure phenomenon: When sitting, press the buttocks, only for women, the dryer does not work, but the nozzle cleaning and lighting work normally
Check parts: (seat ring, computer board, plug connections)
Troubleshooting method: Place a soft rag that is not dry right above the seat sensor and use a multimeter to connect the 20V sensor line. If there is 5V, the sensor is broken (replace the seat ring) or the connector has poor contact. If it is 0V, the computer board is broken.
8.Fault phenomenon: The low light keeps flashing (more than 90S)
Inspection parts: (water tank reed switch, solenoid valve, contact between upper cover and mounting strip, transformer, computer board, ceramic inner water pipe)
Troubleshooting method: First check whether there is water overflowing from the nozzle. If there is, check whether the reed switch is connected. If no water overflows, check whether the water pressure at the customer’s home is greater than 0.4mpa. If it is greater, use a multimeter to measure whether there is any leakage at both ends of the solenoid valve. No DC 12V voltage? If not, check whether there is AC output on the secondary pole of the transformer. If it is normal, the computer board is broken. If there is, unplug the solenoid valve. The resistance at both ends should be about 30 ohms. If not, check the complete machine and install it. If there is poor contact between the strips, the solenoid valve is suffocated or the filter is clogged. If you hear the sound of water flowing, the water pipe in the ceramic may be broken.
9. Fault phenomenon: ultra-high water temperature alarm (the buzzer sounds continuously and the low light does not flash)
Inspection parts: (magnetic temperature-sensitive switch, temperature sensor, computer board)
Troubleshooting method: Unscrew the drain bolt and feel whether the water temperature exceeds 45°C with your hands to determine whether the temperature sensitive switch is good or bad. After refilling the water, use the remote control to turn off the water temperature heating, and measure whether there is 220V voltage at the water tank heating plug. If so, The computer board is broken. If the resistance of the water temperature sensor is not checked to see if it is normal, if not, replace the water temperature sensor (sometimes the 3062 on the computer board will sometimes conduct and sometimes not, causing the water temperature to be extremely high, then replace the computer board)
10.Fault phenomenon: Stepper motor alarms (5 beeps every 3 seconds, cutting off strong power)
Inspection parts: (panel, cleaner, transformer)
Troubleshooting method: First unplug the panel to see if it is normal. If it is normal, the panel is short-circuited. If the problem persists, check the cleaner. Unplug the optocoupler line. If it is normal, the cleaner is broken. If not, check whether the secondary output voltage of the transformer is normal. Normal. If not, the transformer is broken.
11.Fault phenomenon: The cleaner is not working properly, and the hip tube or the female-only tube is always extended.
Inspection part: (Cleaner ceramic valve core, optocoupler line plug)
Troubleshooting method: One possibility is that the ceramic valve core is stuck and cannot pop out; another possibility is that the plug of the optocoupler line has poor contact.
12.Fault phenomenon: The water supply to the water tank is normal, the cleaning function does not discharge water, and the low light flickers on and off during drying work.
Check part: The socket voltage of the user’s home
Troubleshooting method: Check the power strip connected to the user’s main power supply
13.Fault phenomenon: The status indicator lights are all on, and the fault persists after replacing the board. Unplugging the three heating wires works fine, but plugging in one does not work.
Check section: (User socket)
Troubleshooting method: Change the socket in another room to debug
14.Troubleshooting: Unscheduled power on and off
Inspection part: (panel, panel connector)
Troubleshooting method: Unplug the panel. If it works normally, it may be a short circuit caused by water entering the panel, or poor contact between the panel and the wiring.
15.Fault phenomenon: Water does not drain automatically
Check parts: (stepper motor, optocoupler board, computer board)
Troubleshooting method: If the A stepper motor keeps rotating, unplug the optocoupler plug. If it stops rotating, the optocoupler board is damaged or affected by moisture. If it continues to rotate, the computer board is damaged. B The stepper motor does not rotate. Unplug the stepper motor plug and measure the resistance of line 1 and other lines. It should be about 30 ohms. If it is normal, use a multimeter to check whether there is AC 9V output on the secondary pole of the transformer. If it is normal, the computer board is broken. .
16.Fault phenomenon: Leakage alarm (buzzer sounds continuously, low light flashes continuously)
Check parts: (water tank, computer board, strong electric connection, leakage protection plug, washer leakage)
Troubleshooting method: First check if there is water leakage. If it is solved, unplug the water tank heating wire and turn it on again. If it is normal, the insulation of the water tank heating pipe is not good. If the fault persists, the computer class is broken. If it suddenly stops during the water spraying process, the leakage alarm will be alarmed. If there is no leakage, adjust the mounting strip.
Post time: Sep-30-2023