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download Problem & solution
Check the most common malfunctions along with their causes and solutions.
RO Industrial types: 800 - 1500 - 3000 - 4500 - 6000 - 12000
Malfunctions and solutions for industrial RO systems.
System produces wastewater but no demiwater
Use the control knob to check if the operating pressure increases. If it does, this indicates the cause below.
Cause: Membrane clogged.
Solution: Replace membrane.
System is on but produces no water at all and the operating pressure gauge does not rise
Cause: Solenoid valve between filters and pump remains closed. Solenoid valve coil burned out.
Solution: Replace the solenoid valve.
Low water yield and operating pressure gauge remains low
Cause: Vane pump worn out.
Solution: Replace vane pump.
Display does not light up when turning on the system
Cause: Display glass fuse blown.
Solution: Replace glass fuse (back of display).
Motor does not start when turning on the system, even though the motor icon on the display is rotating
Cause: Motor thermal protection in the electrical cabinet has been triggered.
Solution: Reset thermal protection in the electrical cabinet.
System starts and stops (stuttering) and 'low' flashes
Cause: The low-pressure switch is set too high.
Solution: Adjust the low-pressure switch to a lower setting.
Display counts down to 0 but system does not start
Solution: Check if 'Full' lights up on the display and check the float switch. If necessary, connect the green wires together.
RO 600 GPD Commercial
Malfunctions and solutions for the RO 600 GPD Commercial version.
System produces wastewater but no demiwater
Cause: Membrane clogged.
Solution: Replace membrane.
Computer controller counts down and turns off
Cause: Display glass fuse blown, or short circuit in the inverter, or short circuit in the coil of the blue solenoid valve at the top right.
Solution: Check the glass fuse, check the inverter, and check the solenoid valve coil. Replace these if necessary.
System receives no water
Cause: Coil of the blue solenoid valve (top right) burned out.
Solution: Replace the solenoid valve.
Frequently Asked Questions
Answers to practical questions regarding the use, maintenance, and performance of RO systems.
How often should pre-filters be replaced?
This depends on water quality and intensity of use. In many situations, pre-filters are checked periodically and replaced preventatively according to the maintenance schedule. Under normal conditions and average use, this is every 2-3 months.
Why is water production lower in winter?
At lower water temperatures, the output of an RO system decreases. This is normal and must be taken into account when dimensioning the system. It is not effective to compensate using the control knob, as this will result in a clogged membrane.
What does a high TDS or PPM value mean?
A higher value may indicate contaminated or worn membranes, incorrect settings, deviations in water pressure and operating conditions, or the incorrect installation of a new membrane.
Can I run the system continuously?
Our RO Industrial systems are designed for continuous production. The compact RO 600 Commercial has a cycle of a maximum of 10 hours of production followed by one hour of rest.
When should a membrane be replaced?
This depends on usage, water quality, and maintenance. A decrease in production or deteriorated water quality may be an indication that inspection or replacement is required.
Do you have any further questions?
Please contact us for support with documentation or product inquiries.