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Reverse osmosis equipment troubleshooting

Time:

Nov 12,2021

① Electrical circuit failure, such as fuse failure, wire falling off ② The thermal protection element is not reset after protection ③ Undervoltage of waterway, check fuse and check wiring ② Reset of thermal protection element ③ Check the waterway and ensure the water supply pressure

Reverse osmosis equipment troubleshooting
Reverse osmosis equipment troubleshooting

The switch is on, but the device does not start.

① Electrical circuit failure, such as fuse failure, wire falling off
② The thermal protection element is not reset after protection
③ Undervoltage of waterway, check fuse and check wiring
② Reset of thermal protection element
③ Check the waterway and ensure the water supply pressure

After the equipment is started, the water inlet solenoid valve is not opened.

① Wiring off
② Internal mechanical failure of solenoid valve
③ The solenoid valve coil is broken
① Check the line
② Disassemble the solenoid valve for maintenance
③ Repair or replace the coil

Pump running, but not up to rated pressure and flow.

① Pump reversal
② The filter element of the security filter is dirty
③ There is air in the pump
④ Flushing solenoid valve open
① Re-wiring
② Clean or replace the filter element
③ Eliminate the air in the pump
④ Adjust the pressure after flushing

When the system pressure rises, the pump is noisy.

① Insufficient raw water flow
② Unstable raw water flow
③ Check the raw water pump and pipeline
④ Check the raw water pump and pipeline, and check whether the pipeline leaks

The solenoid valve is not closed after flushing.

① Solenoid valve control components and wiring failure
② Solenoid valve mechanical failure
③ Check or replace components and wiring
④ Remove the solenoid valve, repair or replace it

Undervoltage shutdown.

① Insufficient raw water supply
② Security filter element is blocked
③ Improper pressure adjustment

Underpressure caused by automatic flushing.

 

Check whether the raw water pump and pretreatment system are working
② Clean and replace the filter element
③ Adjust the system pressure to the best state to maintain the filtered pressure above 20psi

The concentrated water pressure does not reach the rated value.

① Pipeline leakage
② Not all flushing solenoid valves are closed
③ Leakage of recovery system
① Check and repair the pipeline
② Check and replace the flushing solenoid valve
③ Check and repair the recovery system

The pressure is enough, but the pressure display is not in place.

① Blocking of foreign matter in the pressure gauge hose
② There is air in the hose
③ Pressure gauge failure
① Check and dredge the pipeline
② Exclusion of air
③ Replace the pressure gauge

Water quality is getting worse.

① Membrane fouling and scaling
② Aging failure of membrane junction seal
① Chemical cleaning according to technical requirements
② Replace the O-ring
③ Replace the membrane

Decreased production.

① Membrane fouling, scaling, chemical cleaning according to technical requirements
② The water temperature change shall be recalculated according to the actual water temperature to determine the produced water.

Key words:

water equipment

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