1. When the water is full, it cannot be stopped immediately and it will start again. The frequency is very fast and cannot be completely stopped:

  • If the high-voltage switch fails, it can be repaired if it can be repaired, and a new one if it cannot be repaired.
  • If the pressure relief of the check valve cannot be blocked, please replace it.
  • System pressure relief status: check whether there is pressure relief and water leakage in each component, if any, reconnect or replace parts.

2. When the main engine starts, the pump will start and stop when it is automatically flushed:

  • The raw water pressure is insufficient, please install a pressurizing pump. (Reverse osmosis straight drinking machine / reverse osmosis pure water machine fault diagnosis and solution – reverse osmosis, straight drinking machine, reverse osmosis, pure water machine, pure water machine fault diagnosis, straight drinking machine fault solving)
  • The first 5μPP fiber filter is blocked, please replace the filter.

3. The machine is in a shutdown state, but the waste water flow does not stop:

  • Check whether the water inlet solenoid valve is inoperable, if so, please replace it.
  • The pressure of the raw water is greater than the pressure set by the high pressure switch, please adjust the pressure of the raw water.

4. Pump head leaks:

  • Check whether the granular activated carbon or PP meltblown filter element is blocked, so that the water from the pump head cannot be sent out, and the pressure rises and water leaks. If so, please replace the granular activated carbon filter element and send the pump for repair.
  • The adhesive aging of the pump head or the blockage of internal scale will also cause water leakage. Please send the pump for repair. In the future, you need to check the PP meltblown filter element frequently to avoid blockage.

5. If the pump does not start, the water cannot be purified:

  • Check whether the raw water pressure fails, and the low-voltage switch is powered off.
  • Check whether the high-voltage switch fails and cannot jump back. (Reverse osmosis straight drinking machine / reverse osmosis pure water machine fault diagnosis and solution – reverse osmosis, straight drinking machine, reverse osmosis, pure water machine, pure water machine fault diagnosis, straight drinking machine fault solving)
  • Check whether the fuse of the transformer is burned out. If it is burned, please check whether the granular activated carbon or sintered activated carbon filter element is blocked and the pump is overloaded.

6. The pump is running normally, but the water cannot be purified:

  • The RO reverse osmosis membrane is blocked or the pump loses pressure. If the RO reverse osmosis membrane is blocked, please replace it. If the pump loses pressure, find out whether the pump structure is caused by the long-term heavy load or the frequent blockage of the filter element without proper maintenance. Aging, please send the pump for repair.
  • If the water inlet solenoid valve fails, water cannot be supplied, please replace it.
  • Whether the first three filter elements are blocked.

7. The pressure tank is full of water and pure water cannot flow out:

  • If the air in the pressure barrel is depressurized, please re-inflate it (about 7psi about 0.5kg force) and check whether there is air leakage in the pressure barrel. If it cannot be inflated, replace it.
  • The rear activated carbon is blocked, please replace it.

Xi’an CHIWATEC Water Treatment Technology is a high-tech enterprise specialized in various water processing devices. Aside from these individual products, which cover a number of types and series, we can also help with related comprehensive engineering projects. Thanks to our hard work and dedication upon our founding, we are now one of the fastest-developing water treatment equipment manufacturers in Western China.

Further reading:

Treatment Machine RO Plant

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