8888
OPERATION INSTRUCTIONS
TROUBLESHOOTING
Power indicator
Heating indicator
Temperature display
Knob
Power On
When the mains power supply is switched on, the buzzer
beeps once and all the indicators light up for three
seconds and then go out except power indicator. Power
indicator is on green, heating indicator and display screen
are not on.
Operation
1. Press the knob (a beep can be heard) to turn on the
water heater power, the LED display will turn on, it shows
the actual outlet water temperature. Heating indicator is on
red in the state of heating.
Note:
The unit will not work and the heating indicator is not
on if there is no water flow, or the water flow do not meets
the start-up requirements (0.66GPM/2.5L/min).
2. If the unit is frequently used and the intermediate
interval is short, initially a short burst of very hot water from
the unit will flow out, wait a few seconds for the water to
cool down to the set temperature when using.
CAUTION:
Regularly clean the inlet filter and the shower
head to get enough flow.
PROBLEM ISSUE
POSSIBLE CAUSE
SOLUTION
Display E1 / E0
Display E2 / E3
Display LL
Inlet temperature
sensor failure.
Inlet temperature lower
than 37°F (3
℃
)
Unit do not work when inlet
temperature lower than 37°F (3
℃
).
Display HH
Inlet temperature higher
than 176°F (80
℃
)
Unit do not work when inlet
temperature higher than 176°F
(80
℃
).
Contact:
[email protected]
Contact:
1
.
Make sure that the main circuit
breakers that supply the water heater
is on
.
2
.
The unit may be wired error.
3
.
There may is a problem with the
circuit breaker.
4
.
Contact:
Outlet temperature
sensor failure.
1. Turn up the setting temperature.
2. Reduce water flow.
3. If the first installation occurs,
please let the electrician check the
wiring carefully. The wiring may be
incorrect.
If not contact:
4. Check the power supply.
5. Replace temperature sensor.
6. Replace heating element.
Water leakage at the
inlet and outlet
connector.
1. The connector is
not installed in place.
2. Seal damage.
1. Tighten the connector.
2. Replace the seal.
The unit does not
work (Power
indicator is NOT on)
Incorrect power wiring
connection or no power.
Water heater is not
heating at all (Power
indicator is on)
Water heater is
working but the outlet
temperature is not
hot well.
1. Low Setting temperature
2. Excessive water flow
3. Faulty wiring
4. Voltage too low.
5. Temperature sensor
failure.
6. Heating element
damaged.
1. Turn down the setting temperature
2. Increase water flow
3. Cut off the power and contact:
Water heater is
heating but the outlet
temperature is too
hot.
1. Temperature set too high.
2. Low water flow
3. PCB failure
Clean them
The outlet flow is
reduced.
Inlet filter,shower or faucet
clogged.
1. No water flow.
2. The flow too small to start
up the unit.
3. Control board failure.
1a. Check the water supply channel;
1b. Clean filter at unit;
1c. Clean faucet aerator or shower
head.
2. Increase water flow.
3. Cut off the power and contact:
Temperature Control
In the state of heating the outlet water temperature can be
adjusted by turning the knob. Turn the knob clockwise to
increase the outlet temperature, and turn the knob coun
-
terclockwise to decrease the outlet temperature between
80°F – 140°F (26
℃
- 60
℃
), the factory set temperature is
95°F
.
When the setting temperature is turned to the maximum or
minimum, it will be not changed and two beeps will be
heard at the same time.
Fahrenheit / Celsius Switch
●The factory set temperature of the unit is Fahrenheit.
● In the state of heating, press the knob for 3 seconds, the
display will switch between Fahrenheit and Celsius.
● When fahrenheit is displayed, the last text shows F.
● When celsius is displayed, the last text shows C.
35C
95f
Fahrenheit display
Celsius display
NOTE:
When the outlet water temperature reaches 167°F
(75
℃)
the unit will stop heating.