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Trouble shooting – haier AC142ACEAA User Manual

Page 21

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19

Trouble Shooting

Error display ( For *.ERA )

Resumable if lower than 100 degree

For remote

type, flash

times

1

2

3

4

5

6

7

8

9

10

1

1

12

13

14

15

16

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21

Failure description

Indoor ambient temp. sensor failure

Indoor coil temp. sensor failure

Outdoor ambient temp. sensor failure

Outdoor coil temp. sensor failure

Over

-current protection

High pressure abnormal

Power supply abnormal

Communication between wired

controller and indoor abnormal

Communication between indoor and outdoor abnormal

Drainage system abnormal

Outside alarm signal input

Gas pipe temp. sensor abnormal

T

emperature protection malfunction

Dischar

ging temp. sensor abnormal

EEPROM abnormal

Pressure abnormal(low pressure)

Compressor overheat

Abnormal mode

Outdoor coil B(suction temp sensor

-for MR

V

II)

Outdoor dischar

ging B(oil temp sensor

-for MR

V

II)

SPDU module temperature protection

Reason

Sensor broken down or short circuit for more than 2m continuously

Sensor broken down or short circuit for more than 2m continuously

Sensor broken down or short circuit for more than 2m continuously

Sensor broken down or short circuit for more than 2m continuously

CT

check abnormal 3 times in 30m

High pressure switch acts 3 times in 30m

Fault phase, short of phase, out of balance greatly

Communication abnormal for more than 4m continuously

Communication abnormal for more than 4m continuously

Float switch broken down for more than 25m continuously

Outside signal broken down for more than 10s

Sensor broken down or short circuit for more than 2m continuously

Solenoid valve act incorrectly 3 times continuously

Sensor broken down or short circuit for more than 2m continuously

EEPROM data missing

Low pressure switch acts in normal running

The dischar

ging temperature is higher than 120degree

Indoor operation mode is dif

ferent with the running indoor unit.

Sensor broken down or short circuit for more than 2m continuously

Sensor broken down or short circuit for more than 2m continuously

SPUD module temperature is too high

Remarks

shows resumable fault, * shows it is not resumable fault.

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