Chigo CS/CU-25H3A-V84 [10/13] 六 dc inverter multi split series

Chigo CS/CU-51H3A-P84 [10/13] 六 dc inverter multi split series

protection

2、Check whether the sensor, connecting wire of the sensor

and the detection circuit are abnormal.

P5 5 light

over heat of

compressor top

protection

1、Check whether the air condition system and pressure are

normal.

2、Check whether the sensor, connecting wire of the sensor

and the detection circuit are abnormal.

P6 6 light

suction temp. of

compressor

protection

1、Check whether the air condition system and pressure are

normal.

2、Check whether the sensor, connecting wire of the sensor

and the detection circuit are abnormal.

P7 7 light

low or high voltage

protection

1、Check whether the supply voltage is out of rang from

150 to 270V

2、Check the voltage detection circuit of the IPM base

board is abnormal, if it is abnormal, the IPM base board

or the electric control board should be replaced.

P8 8 light

low presser of gas

return protection

1、 Check whether the pressure is normal when the unit is

running, if it is abnormal, should detect the leakage and

welding、 add refrigerant.

P9 9 light

high pressure of

discharge

protection

1、Check whether the pressure is normal when the unit is

running, if it is abnormal, should detect the leakage and

welding、 add refrigerant.

PA 10 light

high temp. of

condenser

protection

1、Check whether the condenser of outdoor unit is too dirty,

and it should be cleaned when it is too dirty.

2、Check whether it is running at bad condition long

time.

3、Check whether senor and wire are normal.

PC 11 light

high temp. of

outdoor ambient

protection

1、Check the outdoor ambient temperature is too high or

there is heat source around the outdoor unit.

2、Check whether the sensor and sensor wire are normal.

PF 12 light other protection

六、DC inverter multi-split series

LED failure

The reason of fault and solution

F1 communicate fault

1、Check whether the connection of the outdoor unit and indoor unit is

one to one.

2、Check whether the unit is abnormal caused by the external

interference, if it is, then find the interfering source, and removes it.

3、Check whether the electrical control board is damage, it

should be replaced when it is damaged.

F2 indoor temp. sensor fault

1、 Check whether the resistance of sensor is normal, otherwise replace

it.

2、Check whether the sensor wire is short circuit or open circuit, and

whether the plug is well contacted, whether there is welding off or

rosin joint on the electric control board, repair it if there is any

above.

Chigo CS/CU-25H3A-V84 [10/13] 六 dc inverter multi split series

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