CS-E9GFEW, CU-E9GFE, CS-E12GFEW, CU-E12GFE, CS-E18GFEW, CU-E18GFE - Panasonic Air Conditioner Service Manual (repair manual). Page 2

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6.1. CS-E9GFEW  CU-E9GFECS-E12GFEW  CU-

E12GFE ---------------------------------------------------- 24

6.2. CS-E18GFEW  CU-E18GFE -------------------------- 25

7 Wiring Connection Diagram --------------------------------- 26

7.1. Indoor Unit ------------------------------------------------- 26
7.2. Outdoor Unit ----------------------------------------------- 27

8 Electronic Circuit Diagram----------------------------------- 29

8.1. Indoor Unit / Remote Controller ---------------------- 29
8.2. Outdoor Unit ----------------------------------------------- 31

9 Operation and Control----------------------------------------- 34

9.1. Simultaneous Operation Control (Multi Type

Only)--------------------------------------------------------- 34

9.2. Basic Function -------------------------------------------- 35
9.3. Room Temperature Control (Compressor

Control) ----------------------------------------------------- 36

9.4. Automatic Operation------------------------------------- 37
9.5. Indoor Fan Motor Operation --------------------------- 39
9.6. Airflow Direction Control-------------------------------- 41
9.7. Powerful Mode Operation ------------------------------ 44
9.8. ON Timer Control ---------------------------------------- 44
9.9. OFF Timer Control --------------------------------------- 44

9.10. Auto Restart Control------------------------------------- 45

9.11. Indication Panel------------------------------------------- 45

9.12. Auto Operation Switch --------------------------------- 45
9.13. Freeze Prevention Control ---------------------------- 45
9.14. Dew Prevention Control-------------------------------- 46
9.15. Protection Control Features--------------------------- 46

10 Self Diagnosis Display---------------------------------------- 53

10.1. Self Diagnosis Function -------------------------------- 53
10.2. Error Codes Table --------------------------------------- 54

11 Installation Instruction---------------------------------------- 56

11.1. Auto switch operation----------------------------------- 56
11.2. Changing the remote control transmission

code --------------------------------------------------------- 56

11.3. Indoor Unit------------------------------------------------- 57
11.4. Outdoor Unit ---------------------------------------------- 65

12 Disassembly and Assembly Instructions -------------- 68

12.1. Indoor Unit------------------------------------------------- 68
12.2. Outdoor Unit ---------------------------------------------- 72

13 Technical Data --------------------------------------------------- 74

13.1. Operation Characteristics ----------------------------- 74
13.2. Sensible Capacity Chart ------------------------------- 86

14 Exploded View and Replacement Parts List----------- 87

14.1. Indoor Unit------------------------------------------------- 87
14.2. CU-E9GFE  CU-E12GFE------------------------------ 90
14.3. CU-E18GFE----------------------------------------------- 92

• Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
• Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and

main circuit for the model installed.

• The caution items stated here must be followed because these important contents are related to safety. The meaning of each

indication used is as below.
Incorrect installation or servicing due to ignoring of the instruction will cause harm or damage, and the seriousness is classified
by the following indications.

The items to be followed are classified by the symbols:

• Carry out test running to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, care and

maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.

This indication shows the possibility of causing death or serious injury.

This indication shows the possibility of causing injury or damage to properties.

This symbol denotes item that is PROHIBITED from doing.

1.

Engage dealer or specialist for installation and servicing. If installation or servicing done by the user is defective, it will cause water leakage,
electrical shock or fire.

2.

Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire. 

3.

Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage,
fire or electrical shock. 

4.

Install at a strong and firm location which is able to withstand the set's weight. If the strength is not enough or installation is not properly
done, the set will drop and cause injury.