1. Check whether the raw water pipeline is cut off, causing the booster pump to idle, resulting in loud noise in the pure water machine.

2. Check whether the raw water is normal, if it is water supply without tower, whether there is gas in the water,

3. Check whether the booster pump is faulty, the vibration is too large, there is friction sound, etc.

4. Check whether the water pipe is too long, and the vibration of the pump causes the water pipe to hit the casing

1. Long time without water will also appear potential odor. Can try to flush, drain the water at the front end to try whether the problem is solved

2. Replace the pre-filter element such as: PP cotton, CTO compressed carbon, RO reverse osmosis membrane

3. Replace the post filter element such as T33, mineralization, etc.

1. Confirm whether there is a balance in the IC card. If not, you need to recharge and then try to swipe the card.

2. Check whether there is water in the equipment water tank, if there is water, check whether the low level switch is normal, and try to replace the new level switch

3. Check whether the connection of the main board and card swiping board chain is loose. If the connection is normal, consider replacing the card swiping board and main board to try.

If E009 appears on the new device, it means that it is being registered on the Internet. If E009 appears on the old device, it needs a small program background to check whether to remind the SIM flow card to be recharged. After recharging, it can be used normally after a moment.

1. Power off the equipment and restart it to observe whether it returns to normal

2. Check the high level switch and rotate it to see if it returns to normal. If it does not, repair or replace the high level switch.

3. Motherboard problem, replace the motherboard

Facing the problem that the equipment does not start, first carry out a series of basic checks

1. * * Power supply problem * *: Although the indicator light indicates that the power supply has been connected and the voltage is basically normal, there may be unstable power output, insufficient current or power module failure, and whether the power socket is stable and not loose.

2. **Hardware connection**: There may be poor contact or wrong connection between various parts of the device, such as loose data lines, bent pins, damaged interfaces, etc., which may hinder the normal transmission of signals and cause the device to fail Start.

3. **Device protection mechanism**: Some devices have built-in protection mechanisms, such as overheat protection, overcurrent protection, etc. When an abnormal situation is detected, it will automatically cut off the power supply or prohibit starting to protect the device from further damage.

4. * * Insufficient raw water pressure * *: Although there is water circulation, the equipment is not started due to the pressure value not reaching more than 0.2Mpa. You can try to connect the low pressure switch of the equipment for short circuit connection and recover after the water is full. It is recommended that you install a booster pump to ensure sufficient pressure.

If the device still fails to start after all the above steps, provide the device error code and describe the details Contact us to request technical support or repair services