| Failure |
Probable cause |
Troubleshooting method |
| 1. The unit not starting. The power button backlight and display do not illuminate |
No power |
Check the utility outlet the unit is connected to and the integrity of the power cord |
| Electrical circuit breakage or drive board defect |
Contact a service center for diagnosis and troubleshooting |
| 2. The unit doesn’t start to filtrate generation. |
Source water is blocked or source water pressure is insufficient (power button backlight flashes frequently) |
Check the availability of source water with the required parameters |
| Drive board or pump defect |
Contact a service center for diagnosis and troubleshooting |
| 3. The unit does not turn off for a long time when the filtrate isn’t distributed |
The PS2 pressure switch does not work out. |
Contact a service center for diagnosis and troubleshooting |
| Extremely low capacity of the membrane module due to contamination of the ROC cartridges |
Replace the cartridges or clean the membrane module chemically in a service center or yourself |
| 4. The capacity of the membrane module has decreased by more than 20% compared to the original (when the flow is measured through the HC6 connector) |
Significant decrease in the temperature of the source water (by 5-10°C) |
If possible, increase the temperature of the source water |
| Contamination of the ROC cartridges |
Replace the cartridges or clean the membrane module chemically in a service center or yourself |
| 5. The capacity of the membrane module has increased dramatically compared to the original value |
Rupture of the reverse osmosis membrane of the ROC cartridge |
Replace the failed ROC cartridge. Note. To detect a faulty cartridge replace each ROC cartridge with a new one, followed by checking the membrane unit for normal operation. |
| 6. Filtrate accumulated in the pressure tank is not distributed |
Shut-off valve on the pressure tank is blocked |
Open the shut-off |
| Low pressure in the air cavity of the hydraulic accumulator |
Inflate the accumulator to 1.5 bar |
| 7. The membrane cartridges have drastically shortened their lifespan |
Deterioration of the source water quality. |
Check if the source water meets the data sheet requirements |
| Prolonged use of pre-treatment cartridges without replacement |
Replace the MFC, ACC cartridges |
| 8. The replacement time for a MBC cartridge has been drastically reduced |
Contamination of the ROC cartridges |
Replace the cartridges or clean the membrane module chemically in a service center or yourself |
| Deterioration of the source water quality. |
Check if the source water meets the data sheet requirements |
