Chigo CS/CU-25H3A-V84 [4/13] 二 floor standing ac serial

二、floor standing AC serial

LED lamp display

code explain code explain

failure

The reason of fault and solution

display at

off state

flicker 2/4

SEC

display

at on/off

state

room temp.

sensor

fault

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.

display at

off state

flicker 3/5

SEC

display

at on/off

state

coil temp.

sensor

fault

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.

display at

on/off

state

flicker 4/6

SEC

display

at off

state

outdoor

unit

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 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.

display at

off state

flicker 7/9

SEC

display

at off

state

outdoor

feedback

fault

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

Chigo CS/CU-25H3A-V84 [4/13] 二 floor standing ac serial

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