RO reverse osmosis purified water equipment ten failures and maintenance methods

Jul 14, 20235 min readVOLARDDA Engineering Team4 views

RO reverse osmosis purified water equipment ten failures and maintenance methods

  • First, the switch is on, but the device does not start:
  • Electrical line failure, such as bad insurance, wire fall off
  • The thermal protection element does not reset after protection

The solution:

  • Water undervoltage, check the insurance, check the wiring
  • Reset the thermal protection element
  • Check waterways to ensure water supply pressure
  • Second, after the equipment is started, the water inlet solenoid valve is not opened:
  • Cables are disconnected
  • The internal mechanical fault of the solenoid valve occurs
  • The solenoid valve coil is faulty

The solution:

  • Check the cable
  • Remove the solenoid valve for repair
  • Repair or replace the coil
  • Third, the pump operation, but not up to the rated pressure and flow:
  • Pump reversal
  • The security filter element is dirty
  • There is air in the pump
  • Flush the solenoid valve to open

Solution:

  • Reconnect cables
  • Clean or replace the filter element
  • Remove air from the pump
  • Adjust the pressure after rinse
  • Fourth, when the system pressure rises, the pump noise is large
  • Raw water flow is not enough
  • Raw water flow is unstable

Solution:

  • Check the original water pump and pipes
  • Check whether the original water pump and pipes are leaking
  • The solenoid valve is not closed after washing
  • The control components and circuits of the solenoid valve are faulty
  • The solenoid valve is faulty

The solution:

  • Check or replace components and circuits
  • Remove the solenoid valve and repair or replace it
  • Sixth, under voltage stop
  • Insufficient supply of raw water
  • The security filter element is blocked
  • Improper pressure adjustment, automatic flushing caused by underpressure

The solution:

  • Check whether the original water pump and pretreatment system are working
  • Clean and replace the filter element 3. Adjust the system pressure to the best state, so that the filter pressure is maintained at more than 20psi
  • Seven, the concentrated water pressure does not reach the rated value
  • Pipeline leakage
  • The flushing solenoid valve is not fully closed
  • The recycling system is leaked

The solution:

  • Check and repair pipes
  • Check and replace the flushing solenoid valve
  • Check and repair the recycling system
  • Eight, the pressure is enough, but the pressure display is not in place
  • The pressure gauge hose is blocked with foreign matter
  • There is air in hose
  • The pressure gauge is faulty

The solution:

  • Check and dredge pipes
  • Remove air
  • Replace the pressure gauge
  • Nine, the water quality deteriorates
  • Membrane contamination and scaling
  • The seal of the membrane junction fails due to aging

The solution:

  • Chemical cleaning according to technical requirements
  • Replace the O-ring
  • Replace the membrane
  • Ten. Decline in production
  • Membrane contamination, scaling, chemical cleaning according to technical requirements
  • Water temperature change is determined by recalculating the actual water temperature.
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