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1.Fault Code Analyses:
Fault code
Fault
phenomenon
Fault
character
Fault point
Handling
method
F02
五、 FAULT ANALYSIS AND TROUBLESHOOTING
Check and
confirm methods
Abnormal time for adding water and replenishing water (when the water is
added for more than 6 minutes and none stop, or when the water is replenished
for more than 4 minutes and is not replenished)
water adding system error
Water source
Check if water
is blocked
Water pump Two position three
way solenoid valve
Water tank
(equipment with
water tank)
①Check if the pump is
working normally (there is
slight vibration and sound
when working normally)Wa-
ter will come out of the
drainage pipe within 5
seconds after starting the
machine.
②When there is no
vibration, check whether the
pump power supply end
voltage is normal (DC24V),
normal means the water
pump is broken.
③No drain when vibration,
check whether the voltage
at the power supply end of
the pump is normal (DC24V),
otherwise the pump is
broken.
①Check if the voltage at
the power supply end of
two position three-way
solenoid valves is normal
(DC24V), which is
combined with crisp
sound under normal
circumstances.No sound
absorption means that
the water return valve is
broken.
②Under normal circum-
stances, suction but no
water, it means that the
pipeline or one-way
valve blocked.
Check if there is
water in the
water inlet tank
check water
source
Replace water pump
Clean the
blockage
Replace water retrun valve or
clean the
2.Other Fault Analysis:
Fault Phenomenon Fault Character Fault Point Check And Confirm Methods Handling Method
Iron serious spraying
water
Abnormal water
level control
Water level sensor
scale
After drain, disassemble the equipment
to check if the water level probe is
scaling
Clean water level probe
Main control board
damaged
After drain, check if the voltage between
the water level probe and the hardware
plate where the probe is located is
AC12±1v;After the equipment is filled
with water, check if the voltage between
the water level probe and the hardware
plate where the probe is located is
AC0±1V.
① Replace main control board
② Check the water level line
and water level grounding port
六、 AFTER SERVICE
If you have any quality problems or other problems after purchase Hemway products, please
contact the local distribut or hemway@hemway.com.cn for consultation.
To apply for a warranty must be in accordance with the below conditions:
1. Please operate the machine strictly according to the manual when it is first started up and
used.
2. Please use parts only from HEMWAY original.
3. Please refer to the warranty card for other terms.
The screen does not
display and the power
indicator does not light
Pressure setting failure
The equipment cannot
enter the descaling
state
Abnormal power
supply
failed to connect
control board or
display board
failure
Pressure setting
system abnormal
Descaling abnorma Abnormal power
supply plug of the
cleaner
Electric leakage
protection switch
Check whether the electric leakage
protection input voltage is normal; if the
voltage is normal, check the output
voltage; if there is no voltage at the
output end, then the electric leakage
protection switch is damaged.
Replace electric leakage switch
LED Display
obnormal
connection wire
Pressure setting key
Main control board
Firstly check the power LED indicator on
the back of LED display, if it is on, If it is
on, use a multimeter to observe the
voltage between the second and third
pins of the main control board and the
ground wire. Normally, the DC voltage
should be about 2V, and the AC voltage It
should also be around 2V.
Inspection method: Use a multimeter to
measure the voltage between the two
ends of the wiring to the ground. If the
voltage at both ends is not the same to
the ground, it should be problem.
Disconnect the power supply, open the
side cover of the device, press the
pressure setting key, and test the two
ends of the key with the multimeter.
Failure to connect means the key is
broken.
Disconnect the power supply, open the
side cover of the equipment, press the
pressure setting key, and test with
multimeter. If it is connected, the main
control board is broken.
Check if the power supply plug of the
cleaner is loose or not.
If the power LED indicator is off
or the voltage is abnormal,
replace the display board
replace connection wire
Replace the keys
Replace main control board
Tighten the plug
