Instructions / Assembly

12
TROUBLESHOOTING
PROBLEM CAUSE
Low ow of pure
water
When both the high and low liquid levels of the pure water tank of the machine are
valid at the same time, the digital tube in the display interface will display E4, and the
fault light will ash red.
Solution: Replug the power supply. If there is no change, the water level oat detector
of the pure water tank may have failed, and you need to contact Express Water
support for assistance.
Check whether the plug and socket are properly connected.
Make sure that the lter element is installed correctly.
Check whether the temperature of the water tank is lower than 0°C.
Check whether the fault light is ashing.
Check whether the lter elements at all levels are clogged.
Check whether the lter element replacement life indicator is ashing, indicating that
the replacement cycle has been reached.
Make sure that the lter element is installed correctly and in place.
Check whether the water outlet indicator light is ashing and wait to continue water
production.
Make sure that the machine is unlocked.
Check whether the machine failure maintenance indicator light is on.
If the raw water tank cover is not in place, the operation interface displays E1, and the
fault light ashes red.
Solution: Place the raw water tank and tank cover correctly and observe the working
condition of the machine. If the machine is still in a faulty state, please contact the
customer service center for assistance.
If the machine produces water continuously for 30 minutes, it is considered “abnormal
water production,” and the operation interface will display E2, and the fault light will
ash red.
Solution: Reconnect the power supply to reset the fault state, observe the working
condition of the machine. If the machine is still in a faulty state, please contact the
customer service center for assistance.
When the heater of the machine is dry without water (the temperature exceeds the set
value), the operation interface will display E3, and the fault light will ash red.
Solution: Wait for about 5 minutes, or dispense ambient water to lower temperature.
If the machine is still in a faulty state, please contact Express Water support for
assistance.
Unable to produce /
process water
E4 error displayed
on the operation
interface
E3 error displayed
on the operation
interface
E2 error displayed
on the operation
interface
E1 error displayed
on the operation
interface
No hot water