Press the “ ” key, the water heater will enter the “warm-keeping at
medium temperature” mode. In this mode, maximum heating temperature
is 40°C and not adjustable.
0.8
Cleaning and Maintenance Q & A
Specifications Packing List
Schematic circuit diagram
Appearance and components
Technical data
Packing list
Cleaning and maintenance
Q & A
● Be sure to disconnect the water heater from power supply before cleaning.
● Gently wipe the exterior with a piece of wet cloth and a little neutral detergent. Do
not use gasoline or other solutions. Finally, wipe the exterior with a piece of dry
cloth and keep the water heater dry. Do not use any detergent containing
abrasive (e.g. toothpaste), acid, chemical solvent (e.g. alcohol) or polishing
agent.
To keep high-efficiency operation, please clean heating tubes and inner water tank
once every three years. At the time of cleaning, be careful not to damage the
protective coating on the exterior of heating tubes and on the surface of inner water
tank.
● Be sure to disconnect the water heater from power supply before cleaning the
inner water tank.
● Before cleaning, close the water inlet valve, open the water outlet valve, remove
the “shockproof wall” shell and magnesium rod (at this time, you may also check
the loss of magnesium rod for timely replacement. Note: magnesium rod must be
purchased additionally.), drain the water tank, and then open the water inlet valve
to wash the inner water tank again and again for several minutes until clean
water flows out, and finally reinstall the magnesium rod and “shockproof wall”
shell in place.
● When the water heater is in use, check the relief valve once a month
as follows: pull the small handle of relief valve at the side of water
inlet pipe (be careful not to hurt your hands), if water flows out, it
means the relief valve is in normal operation; if no water flows out,
please contact local Haier after-sales service center; if the relief
valve is damaged, please replace it with a new relief valve of the
same specification.
● Ask an after-sales service technician for safety inspection on a
regular basis, remove the scale of heating tubes in a timely manner
and check the loss of magnesium rod, and if necessary, replace the
magnesium rod in time.
If the water heater will not be used for a long time, please do as follows:
1. Close the tap water pipe valve.
2. Connect one end of drain pipe to the pressure relief vent of relief
valve and then open the handle of relief valve.
3. Open the hot water valve fully (in the meanwhile, remove the hose
of shower head from the water outlet valve; at this time, be careful to
avoid scald by hot water) to drain the inner water tank.
To avoid personal injury, when you use the water heater again, it is
recommended to open the hot water valve before turning on the power
switch of water heater to discharge the air in the pipe; at this time,
smoking or other open flame is prohibited near the open valve. In
addition, thoroughly check whether each component of the water heater
is in good condition and confirm whether inner water tank is full of water
before using the water heater.
L: live wire (brown)
N: neutral wire (blue)
PE: ground wire (yellow and green)
MT1/MT2: manual reset thermostat
EH: heating tube
RT: sensor
Front view
Sectional view
Side view
A. Hot water outlet B. Cold water inlet C. Heating tube D. Enamel inner water tank E. Magnesium rod
Display panel
Electric
leakage coil
Relay
Relay
Relay
Model
Component
Electric
water
heater (set)
Relief
valve and
drain pipe
(set)
Expan-
sion bolt
(pc
Expan-
sion
hook
(pc)
Operat-
ing
Instruc-
tions (pc)
Remote
control-
ler (pc)
Water
flow
sensor
(pc)
Elbow
(pc)
Hidden
cover
(pc)
Washer
(pc)
Qty.
Model
Note: For the above parameters (dimensions and weight), permissible error is ±10%.
VolumeSpecified
power
supply
Rated
power
Rated
pressure
Rated
tem-
pera-
ture
Grade
of
water-
proof
Tap
water
pres-
sure
Net
weight
(storage)
Warning!
The water heater must be repaired and maintained by a qualified technician only. Improper operation may cause
serious injury or property loss.
Cleaning
Check
Nonuse for a long time
Cleaning of the exterior
Cleaning of the interior
Phenomenon
Items to be confirmed
Solutions
①
W
hether the water supply system is
c
ut o
ff
or
whether water pressure is too low
Che
c
k
N
o water out
f
low
②
W
hether the water outlet is
c
logged or whether the
hot water valve is opened
Che
c
k and
c
lean
①
W
hether the hot water outlet is opened
Che
c
k and open
②
W
hether water temperature is set properly
Moderately raise the set temperature, wait until the water heater
heats water to the newly set temperature and then
c
ontrol
c
old
and hot water
f
low via the mixing valve
③
W
hether the heating time is too short to heat
water to the set temperature
W
ait until the water heater heats water to the set temperature (at
this time, the “heating” i
c
on goes out) and then use water
Cold water
f
lows out
④
W
hether any
c
omponent is damaged
I
f
not
①②③
, please
c
onta
c
t the repair
c
enter
①
W
hether
c
urrent
f
un
c
tion mode is set
c
orre
c
tly
Re
f
er to the des
c
ription o operating modes in the se
c
tion o
f
“Operating Instru
c
tions”, sele
c
t the “shower
f
or a given number o
f
persons” and moderately in
c
rease the number o
f
persons to take
a shower
W
ater temperature does not
rea
c
h the required temperature or
a small amount o
f
water
f
lows out
②
W
hether tap water pressure is too high
Redu
c
e water
f
low o
f
the mixing valve
W
ater
f
low and water temperature
are unstable
W
hether tap water pressure is stable
Redu
c
e water
f
low o
f
the mixing valve or use a
f
ter water
pressure be
c
omes stable
①
W
hether power supply is
c
onne
c
ted well
Che
c
k the power so
c
ket
The water heater
f
ails to turn on
or the display s
c
reen does not
light up
②
W
hether any
c
omponent is damaged
I
f
not
①
, please
c
onta
c
t the repair
c
enter
E1 is displayed
Cir
c
uit
f
ailure
Please
c
onta
c
t the repair
c
enter
①
W
hether inner water tank is
f
ull o
f
water
Turn o
ff
the water heater,
f
ill inner water tank with water and turn
on the water heater again
E2 is displayed
②
W
hether any
c
omponent is damaged
I
f
not
①
, please
c
onta
c
t the repair
c
enter
①
W
hether room temperature is below -20
�
Turn o
ff
the water heater and turn on it again when ambient
temperature is above -19
�
, the water heater will return to normal
state
E3 is displayed
②
W
hether the sensor is damaged
I
f
not
①
, please
c
onta
c
t the repair
c
enter
Press the “ (hour)” key or the “ (minute)” key, the
clock will flash.
Press the “ (hour)” key continuously to set the hour.
Press the “ (minute)” key to set the minute.
Press the “ ”, “ ”, “ ” or “ ” to
confirm the time setting (if no operation is made in 6s, the
time
setting will also be confirmed automatically).
Note: The time setting of water heater adopts the 24-hour
system. Please ensure correct clock setting,
otherwise the “low electricity price at night” and “delay
shower” modes will not function normally.
Press the “ ” key, the icon of “delay ” mode
and the icon of clock display will flash simultaneously, at
which time you may set the “delay ”.
Press the “ (hour)” key continuously to set the hour.
Press the “ (minute)” key continuously to set the minute.
The setting of “delay ” is the same as that of “delay ”.
Note:
● Please use the “delay shower” mode after calibrating the
clock.
● You may set and store time respectively for “delay ” and
“delay ”.
Press the “ ” key, the water heater will enter the “delay shower”
mode. In this mode, the water heater finishes heating water and keeps water
warm before the delay time you set according to the water temperature
setting.
● In this mode, you may switch to “delay ”, “delay ” or “delay ” by pressing
the “ ” key.
● You may set the time respectively for “delay ” and “delay ” by following
the instructions in the section of “setting of the delay time”.
Operating Instructions
3D heating mode
Turn-on
Clock calibration
The “shower for a given number of persons” mode:
The “warm-keeping at medium temperature” mode:
The “low electricity price at night” mode:
The “delay shower” mode:
Description of operating modes
After finishing the installation of a new water heater, there is no water in its water tank, please open the tap water inlet valve and mixing valve,
adjust the mixing valve to provide the most hot water, close the water outlet valve after water flows from the shower head or water outlet
continuously (it means that the water tank is full of water) and turn on the water heater after confirming no water leakage at each joint.
The water heater allows you to choose the desired mode from the following operating modes according to your actual need: the “shower for a given
number of persons” mode, the “delay shower” mode, the “warm-keeping at medium temperature” mode and “low electricity price at night” mode.
Plug in the water heater, the display screen will light up for 2s.
Clock calibration is done when the water heater is in power-on
state.
Power-down memory
Setting of the delay time
The water heater can memorize the operating mode before
power-down.
Automatic temperature control
Being set with the function of automatic temperature control,
when the water heater heats water to the temperature
corresponding to the “shower for a given number of persons”
mode, it will enter the warm-keeping mode and the “warm-
keeping” icon will light up. In the warm-keeping mode, the water
heater will keep such a cycle that it automatically reheats water
to the set temperature and then keep water warm.
Press the “ ” key to set the number of persons to take a shower.*
The water heater will automatically heat water for the selected number of persons to
take a shower.
* Note: The water heaters with volume of 40L, 50L and 60L can be set as “shower for
one person” or “shower for two persons”, while those with volume of 80L can be set
as “shower for one person”, “shower for two persons” or “shower for three persons”.
Press the “ (ON/OFF)” key (the water heater will enter the standby
mode or the operating mode before power failure).
Press the “ ” key, the water heater will enter the “low electricity price
at night” mode. In this mode, the water heater activates the heating or
warm-keeping function during 00:00~06:00 according to the water tempera
-
ture setting.
● According to the electricity price system in some regions, the electricity
price during 00:00~06:00 is lower than that during other hours, so it is
easy to achieve cost saving by selecting the “low electricity price at night”.
● In this mode, the water heater does not heat or keep warm during those
hours other than 00:00~06:00.
After the water heater starts, it can automatically select the activation of 3D heating mode by detecting water temperature in the water tank
and hot water flow. In the 3D heating mode, the water heater heats water at high power to provide more hot water.
Water temperature in the water tank ≤69
°C:
If water flow is less than 2.5L/min, the 3D heating mode will not activate; if water flow is more
than or equal to 2.5L/min, the 3D heating mode will activate.
Water temperature in the water tank ≥70
°C:
If water flow is less than 3L/min, the 3D heating mode will not activate; if water flow is more
than or equal to 3L/min, the 3D heating mode will activate.
Shower for
one person
Shower for
two persons
Shower for
three persons
Press the
“ ” key
Press the
“ ” key
Press the
“ ” key
Preheat
Night-elec
technology
Heat
preservation
Preheat
Night-elec
technology
Preheat
Preheat
Heat
preservation
