12
OPERATION METHOD
- Switch on the power: The display and the indicator will illuminate for 3s and then
turn off. The buzzer will ring once. The heater is now in standby operation.
- Turn on/off heater: Press
NOTE: If you turn on the heater and you don’t use it for 15 min, display will turn off.
When you next time open water tap, display will turn on automatically and show
outlet water temperature.
- Water outlet temperature: You can set water outlet temperature by adjusting
water flow with the multi-functional valve or selecting heating power.
- It is suggested that after use, you first turn off the heater and then close the
water tap.
Troubleshooting
Model with LED display Model without LED display
Error
Code
Trouble
Trouble
Cause
What should be done
E1
The buzzer ring 5 times
and green light is on
The buzzer ring 5 times and the operation indicator
(green) flash 1 time, then repeat flashing.
Voltage drop.
Close the water tap, cut of the power
and contact with the professional
personnel.
E2
The buzzer ring 5 times
and green light is on
The buzzer ring 5 times, and the operation indicator
(green) flash 4 times, then repeat flashing.
Measuring coil (voltage
drop) malfunction.
Close the water tap, cut of the power
and contact with the professional
personnel.
E3
The buzzer ring 2 times
and green light is on
The buzzer ring 2 times, and the operation indicator
(green) flash 2 times, then repeat flashing.
Water outlet temperature
sensor malfunction
Contact with the professional
personnel.
E4
The green light is on
The buzzer ring 2 times, and the operation indicator
(green) flash 3 times, then repeat flashing.
The water outlet
temperature more than
55
℃
Adjust water flow.
L2
The green light is on
The heater doesn't work, and the operation
indicator (green) flash 5 times, then repeat flashing
Not enough water flow
Adjust water flow.
Maintenance and repair
Regularly clean the water filter, to avoid clogging.
Clean the heater with neutral detergent. Do not clean the water heater cover with acidic
or alkaline cleaning detergent. Cut the power off during cleaning.
Packing list
Name
Qty (pcs)
Name
Qty (pcs)
Instantaneous
water heater
1
Multi-functional
valve
1
Manual
1
Mounting kit
1
Filter/sealing
1/4
screw
4+2
Содержание EFWH SERIES
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