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Outdoor Unit Troubleshooting 

Code indication

Indoor displaying 

panel code indication

Outdoor

fault description

(LED1 flash times)

Indoor and

15

Communication fault between indoor and outdoor 

units

Outdoor

E7

Directly display

E1

Directly display

/

Indoor temperature sensor failure

Indoor

E2

Directly display

/

Indoor coil sensor failure

Malfunction

E4

Directly display

/

Indoor eeprom failure

E14

Directly display

/

Indoor fan failure

E5

Trouble record

22

Internal unit antifreeze protection

E9

Trouble record

21

Internal unit overload

F12

Directly display

1

Eeprom failure

F1

Directly display

2

IPM failure

F22

Directly display

3

AC current overcurrent protection

Communication error between module board 

and main PCB board.

4

F3

Directly display

F20

Trouble record

5

High pressure protection

6

Power over/under voltage protection

F19

Trouble record

7

Compressor stall / press instantaneous stop

F27

Directly display

8

Compressor discarging temperature protection

F4

Directly display

F8

Trouble record

9

Abnormal of DC motor

F21

Directly display

10

Abnormal of piping sensor

F7

Directly display

11

Suction temperature sensor failure

Outdoor

Malfunction

12

Abnormal of outdoor ambient sensor

F6

Directly display

13

Abnormal of compressor discharge sensor

F25

Directly display

F13

Trouble record

16

Lack of refrigerant

F14

Trouble record

17

4-way valve reverse failure

F11

Directly display

18

Compressor jam (only for spdu)

F28

Directly display

19

Module PWM select circuit error

20

Outdoor terminal block temperature protection

F15

Trouble record

24

Instantaneous over-current protection of the 

compressor

F2

Trouble record

Compressor U-phase overcurrent

Compressor V-phase overcurrent

Compressor W-phase overcurrent

25

F23

Trouble record

F9

Trouble record

26

Module reset

F24

Trouble record

27

CT disconnection

F34

Trouble record

37

Outdoor coil protection

F35

Trouble record

38

Compressor driver board failure

F43

/

46

Model matching abnormality

2

5

Summary of Contents for 1U22KAEFRA

Page 1: ...24WADFRA 1U71WADFRA Please read this manual carefully before installation This appliance is filled with R32 Keep this operation manual for future reference 0011518288 1U09MAEFRA 1U12MAEFRA 1U18WAEFRA...

Page 2: ...nts 2 Installation Instructions 3 Relocation Procedures 8 Maintenance Instructions 9 Scrapping and Recovery 13 Indoor Outdoor Unit Installion Drawings 12 Safety Precautions 14 Read Before Installation...

Page 3: ...conditioner be sure to bleed the refrigerant circuit to ensure it is free of air and use only the specified refrigerant R32 Make sure ground connection is correct and reliable Do not earth the unit to...

Page 4: ...and open fire are not allowed around the air conditioner Transporting Management Requirements 1 The maximum transporting volume of finished products shall be determined as per local regulations 2 The...

Page 5: ...Air Conditioner Adding Extra Gas With Longer Pipe Calculator WARNING The area of the room in which R32 refrigerant air conditioner is installed cannot be less than the minimum area specified in the t...

Page 6: ...e checked first after unpacking In case the sign is raised the nitrogen sealed still exists Afterwards the black plastic seal cap at the joint of evaporator liquid pipes of the indoor unit shall be pr...

Page 7: ...Read operator manual Read technical manual Operator manual operating instructions Cotton clothes Anti static gloves BEWARE ELECTROSTATICS Goggles Electrical Safety Requirements Note 1 The surrounding...

Page 8: ...eak detection at the joint welding junction of the indoor unit and at the joint of connecting pipelines of the two way stop valve and three way stop valve of the outdoor unit It must be guaranteed tha...

Page 9: ...mount charged are recorded The refrigerant amount charged cannot be confirmed Test Run Installation Instructions 7 Please consult your reseller and or installer to determine if you have a DRED applian...

Page 10: ...r re flaring the same to the outdoor unit Relocation Procedures 8 contractor supplied line a b c d a Fix the OREO module on the board through the bayonet b Reinforce OREO module with screw c Connect c...

Page 11: ...re qualified for safety disposal of refrigerant as required in the assessment regulations 2 The equipment can only be maintained and repaired as per the method recommended by the manufacturer In case...

Page 12: ...maintenance it shall be guaranteed that the sealing functions will not be damaged or the sealing materials will not lose the function of preventing the entry of flammable gas due to aging The substit...

Page 13: ...ntamination of different refrigerants shall be avoided The total length including the refrigerant pipelines shall be shortened as much as possible to reduce the residual of refrigerant inside The cyli...

Page 14: ...shall be used as the hose and shall always be under favorable state Whether the recovery equipment is under favorable state and is properly maintained and whether all the electrical components are se...

Page 15: ...ndoor unit AIR OUTLET AIR INLET CONNECTING PIPING AND ELECTRICAL WIRING DRAIN HOSE 4 Compressor Inside of Unit 1 When installing the unit to wall roof or rooftop fix a supporter surely with nails or w...

Page 16: ...explosion will be caused fire or explosion fire or explosion fire or explosion fire or explosion fire explosion 14 Safety Precautions R32 R R3 32 2 R32 R32 R32 R32 for conventional HFC refrigerants w...

Page 17: ...R32 15 Safety Precautions WARNING CAUTION N Open the window and well ventilated the room...

Page 18: ...roof breaker for current leakage at the power source to avoid the risk of the electric shock Without a breaker for current leakage will cause risks of electric shock fire or explosion Do not use large...

Page 19: ...R32 R32 R32 R32 R32 R32 R32 R32 R32 Read Before Installation 17...

Page 20: ...3 R32 R32 R32 R32 R32 R32 R32 Read Before Installation 18...

Page 21: ...R32 R32 R32 R32 R32 R32 R32 R32 10A HFC 410A Read Before Installation 19...

Page 22: ...EFRA 1U18WAEFRA 1U50WAEFRA 1U24WAEFRA 1U71WAEFRA B 60mm B 60mm A 212mm C 126mm 51mm 51mm B 60mm B 60mm AS60QEEHRA A 218mm C 151mm 38 5mm 38 5mm AS50QDEHRA Installation Procedure 655 155 130 404 Floor...

Page 23: ...If the pipe has to be lengthened the refrigerant should be charged according to Dg m But the charge of refrigerant must be conducted by professional air conditioner engineer Before adding additional...

Page 24: ...Installation Procedure 22...

Page 25: ...evacuation degree Evacuate Installation Procedure 23...

Page 26: ...cal 4G1 0mm 4G1 0mm 3G1 5mm 3G2 5mm 1U71WADFRA Power cable 3G1 5mm2 4G1 0mm 2 POWER 1U26MADFRA 1U35MADFRA 1U53WADFRA 1U71WADFRA 4G1 0mm 7 1KW 4G1 0mm 3G2 5mm 30 2 5 25 25 20 1 POWER 1U25MAEFRA 1U35MAE...

Page 27: ...stantaneous stop F27 Directly display 8 Compressor discarging temperature protection F4 Directly display F8 Trouble record 9 Abnormal of DC motor F21 Directly display 10 Abnormal of piping sensor F7 D...

Page 28: ...our policy of continuous product improvement these dimensionsandspeci cationsmaychangeatanytime Youshouldthereforecheckwithyourdealeror Haier s Customer Care Centre to ensure this yer correctly descri...

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