Chigo CS/CU-32H3A-V84, CS/CU-25H3A-V84, CS/CU-51H3-P88, CS/CU-51H3A-P84, CS/CU-35V3A-M84 Failure code manual
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Failure code manual
content
一、wall split AC series………… …………………………………………2
二、floor standing AC series………….……………………………………4
三、portable AC series…………..…………………………………………5
四、dehumidifer……………………………………………………………6
五、DC inverter single split series…………................................................7
六、DC inverter multi-split series…………………………………………10
1
一、wall split AC series
LED lamp display
code explain code explain
display at
DF
E2
E3
display at
display at
display at
on state
off state
off state
off state
display at
E4
on/off
state
flicker 1/1
SEC
flicker 1/3
SEC
flicker 1/1
SEC
flicker 3/5
SEC
flicker 4/6
SEC
display
at on/off
state
display
at on/off
state
display
at off
state
failure
defrost
indication
anti cold wind
room temp.
sensor fault
coil temp.
sensor fault
outdoor unit
abnormal
2
The reason of fault and solution
Normal, the defrost state is removed, it will return to
normal condition automatically
1、 Normal (during heating mode )
2、It will be removed when the coil pipe temperature
sensor reaches certain temperature.
1、Check whether the resistance of the sensor is normal
(the resistance is 5КΩ in the normal temperature
25 )℃ , when it is abnormal the sensor should be
replaced.
2、Check whether there is short circuit or open circuit in
the wire of the sensor, and whether the plug is
connected well, whether there is welding off or
rosin joint on the electric control board, if there is
any, it should be repaired.
3、When the 1 and 2 are both normal, then the
components or integrated circuit is damaged, the
electric control board should be replaced.
1、Check whether the resistance of the sensor is normal
(the resistance is 5КΩ in the normal temperature
25 )℃ , when it is abnormal the sensor should be
replaced.
2、Check whether there is short circuit or open circuit in
the wire of the sensor, and whether the plug is
connected well, whether there is welding off or
rosin joint on the electric control board, if there is
any, it should be repaired.
3 、 When the 1 and 2 are both normal, then the
components or integrated circuit is damaged, the
electric control board should be replaced.
1、 Check whether the winding resistance and
operation current of the compressor are normal.
2、Check whether the high and low pressure is normal
when the unit is running.
3、Check (whether the coil pipe sensor is normal)
whether the contact of the inserter on the circuit
board is well, the coil pipe temperature sensor is
fixed, the evaporation of the indoor unit is well,
the key is to check the evaporator temperature
detected by the coil pipe temperature sensor has
reached the cooling or heating temperature.
4、Check whether the surface of the condenser is too
dirty, it should be cleaned when it is too dirty.
5、Check whether the capacitance of the outdoor motor
and the fan is damaged, it should be replaced when
it is damaged.
6、If the above items are normal, the electric control
board should be replaced.
1、Check whether two sets of plugs on the outlet end of
the motor have loosed from the socket of the
electric control board, insert it firmly when loosing.
E5
E6
E7
E8
PG motor
display at
off state
PG motor
display at
off state
display at
off state
display at
off state
flicker 5/7
SEC
flicker 6/8
SEC
flicker 7/9
SEC
flicker 8/10
SEC
display
at off
state
display
at off
state
display
at off
state
display
at off
state
no feedback
signal of indoor
fan
no over zero
signal
outdoor
feedback fault
frost
protection/over
heat protection
2、Check whether the indoor motor has damaged, the
motor should be replaced when it is damaged
3、 Check whether the controllable silicon and other
components on the electric control board have
damaged, replace the controllable silicon or electric
control board when they are damaged.
1、Firstly check whether the indoor fan is normal.
2、Check whether the signal outputting from the
integrated chip of the electric control board is
normal, the electric control board should be
replaced when the signal is abnormal.
1、Check whether the winding resistance and operation
current of the compressor are normal
2、Check whether the high and low pressure is normal
when the unit is running.
3、Check whether the indoor and outdoor wiring is
right; when it is wrong, connect them again
according to the circuit diagram
4、 Check whether the contact of the inserter on the
circuit board and the connection are well, otherwise
repair.
5、Check whether the signal feedback wire is
disconnected, replace or connect the feedback
signal wire.
6、Check whether the supply power is phase-lacking or
phase opposition.
7、Check whether the AC electromagnetic contactor is
well.
1、Check whether the filter of the indoor unit is dirty or
blocked, and clean if it is dirty.
2、Check whether the indoor fan is running normally,
and replace the motor if it is abnormal.
3、Check whether indoor pipe temperature sensor is
normal, and replace the sensor if it is abnormal.
4、Check whether the system pressure is normal, if
abnormal, should check whether there is leakage,
and fill the refrigerant again.
3
二、floor standing AC serial
LED lamp display
code explain code explain
display
at on/off
state
display
at on/off
state
display
at off
state
display
at off
state
E2
E3
E4
E7
display at
off state
display at
off state
display at
on/off
state
display at
off state
flicker 2/4
flicker 3/5
flicker 4/6
flicker 7/9
SEC
SEC
SEC
SEC
failure
room temp.
sensor
fault
coil temp.
outdoor
abnormal
outdoor
feedback
sensor
fault
unit
fault
The reason of fault and solution
1、Check whether the resistance of the sensor is normal (the
resistance is 5КΩ in the normal temperature 25 )℃ ,
when it is abnormal the sensor should be replaced.
2、Check whether there is short circuit or open circuit in the
wire of the sensor, and whether the plug is connected
well, whether there is welding off or rosin joint on the
electric control board, if there is any, it should be
repaired.
3、When the 1 and 2 are both normal, then the components
or integrated circuit is damaged, the electric control
board should be replaced.
1、 Check whether the resistance of the sensor is normal
(the resistance is 5КΩ in the normal temperature 25 )℃ ,
when it is abnormal the sensor should be replaced.
2、Check whether there is short circuit or open circuit in the
wire of the sensor, and whether the plug is connected
well, whether there is welding off or rosin joint on the
electric control board, if there is any, it should be
repaired.
3、When the 1 and 2 are both normal, then the components
or integrated circuit is damaged, the electric control
board should be replaced.
1、 Check whether the winding resistance and operation
current of the compressor are normal.
2、Check whether the high and low pressure is normal when
the unit is running.
3、Check (whether the coil pipe sensor is normal) whether
the contact of the inserter on the circuit board is well, the
coil pipe temperature sensor is fixed, the evaporation
of the indoor unit is well, the key is to check the
evaporator temperature detected by the coil pipe
temperature sensor has reached the cooling or heating
temperature.
4、 Check whether the surface of the condenser is too dirty,
it should be cleaned when it is too dirty.
5、Check whether the capacitance of the outdoor motor and
the fan is damaged, it should be replaced when it is
damaged.
6、If the above items are normal, the electric control board
should be replaced.
1、Check whether the winding resistance and operation
current of the compressor are normal
2、Check whether the high and low pressure is normal when
4
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