Q: Why is no water coming from the RO faucet?
a. The filter is expired. Check the filter life indicators to confirm which filter must be replaced, and
then replace it immediately.
b. The water pressure is low. Confirm that the water pressure is between 14.5 PSI and 87 PSI.
c. The water supply is off. Turn on the feed water adapter or water supply valve.
d. The filter was installed incorrectly. Re-install the three filters and make sure they are fitted
e. The tubing is crimped. Check all tubing and remove any crimps.
Q: Why does the RO faucet have low water flow?
a. There is a leak from the tubing connection. Ensure that all tubings are installed correctly and
b. The filter is expired. Check the filter life indicators to confirm which filter must be replaced, and
then replace it immediately.
c. The water temperature is low. Be sure to use the system at a temperature of 41 - 100°F.
Q: Why is there no display on the system?
a. To save power, the screen display and indicators will turn off five minutes after the system stops
filtering water, which is normal.
b. There is no power or the power adapter is broken. Make sure the power adapter is plugged in. If it is
broken, replace it.
Q: Why is water leaking?
a. Check all joints, fittings, and tubing connections to locate the leakage. Make sure the filters are
b. If the front panel screen shows code E02, there is a water lead inside the system. Remove the water
container at the back and check on whether any water is in it.
If there is, clean the container and re-install it. The malfunction should be fixed automatically. If E02
shows again shortly thereafter, please contact our customer service hotline, 1-888-352-3558, Mon-Fri
8:00 AM-5:00 PM (PST) for assistance.
Q: Why does the filtered water have high TDS?
When working properly, the system will provide an over 90% TDS rejection rate (tested under standard
laboratory conditions). If the TDS reading is high, the following are the possible causes:
a. The system hasn't been used a while. Open the RO faucet and allow it to run for a while. The TDS
reading will return to normal.
b. The RO membrane filter has expired. Replace the RO membrane filter immediately.
c. The wastewater pipe is crimped or clogged. Check and remove crimps. Re-align the drain saddle and
d. The source water may have high TDS. Test the source water and the filtered water. The filtered water's
TDS should be about 5%-10% of your source water's TDS. This is a normal range. If the source water has
high TDS, it may reduce the service life of the system. When the filtered water's TDS rises to 15%-20%
of the source water's TDS, replace the filter.
Q: Why does the TDS reading fluctuate when water is dispensed?
a. The TDS reading displayed is the TDS of the flowing filtered water. Therefore, the content of
dissolved solids may vary slightly as water flows, causing a fluctuation in the TDS reading.
b. The built-in TDS sensor has a deviation, causing a fluctuation in the TDS reading.
Q: Why is there a difference between the TDS reading tested by the TDS meter
and the displayed reading?
a. The reading tested by the TDS meter is the TDS of static water in the container, while the TDS reading
displayed by the system is the TDS of flowing water. As a result, the TDS readings are different.
b. There are errors in the TDS meter tests.
Q: Why does the filtered water from the RO faucet taste like tap water?
a. The tubing was installed incorrectly. Make sure the wastewater tubing is not connected to the RO
b. The filters are not installed correctly. Make sure the filters are installed properly.
c. The filter has expired. Check the filter life indicators to confirm which filter must be replaced.
Then replace it immediately.
Q: Water shortage reminder: The front panel screen shows code E01, and the
buzzer sounds three times.
a. Check on whether the pitcher is out of water, then turn on the feed water adapter or water supply
b. The inlet water tubing is crimped. Check and remove crimps.
Q: Booster pump overworked reminder: The front panel screen shows code E03, and
the buzzer beeps for three minutes.
a. Water has been continuously dispensed for over 30 minutes. Power on the system to recover.
b. There is a leak at the tubing connection between the system and the RO faucet. Turn off the power.
Check the tubing connection and make sure the tubing is properly and firmly inserted into the
quick-connect fitting. Then power on the system again.
Q: Booster pump starting and stopping frequently reminder.
The front panel screen shows code E04 and the buzzer sounds five times.
There is an internal pressure imbalance. Disconnect the power. Turn the RO faucet on or off completely
and remove all tubing crimps. Make sure the faucet is not blocked. Then power on the system again.
Q: Why is the RO system making a loud sound?
The sound will not exceed 65 DB, which is a safe level. (65 DB is tested under standard laboratory
conditions, and the feed water pressure is between 14.5 PSI and 87 PSI.) The loud sound may be caused by
a. The system is not positioned in a flat area. Make sure the system is placed on a flat surface and is
b. The system is placed against a cabinet. Do not do this, as the system may vibrate when it works.
c. The water pressure is unstable. Confirm that the water pressure is between 14.5 PSI and 87 PSI. The
sound will decrease when the water pressure becomes stable.