CS-E9DKEW CU-E9DKE / CS-E12DKEW CU-E12DKE

Error Codes Table

 

 

 

 

 

 

 

 

 

 

 

 

Diagnosis

Abnormality / Protection controlAbnormality

Emergency

 

Primary location to verify

 

display

 

Judgement

operation

 

 

 

 

 

 

 

 

 

 

H11

Indoor / outdoor abnormal

> 1 min after starting

Indoor fan operation

• Internal / external cable connections

 

 

communication

operation

only

• Indoor / Outdoor PCB

 

 

 

 

 

 

H12

Connection capability rank abnormal

—

—

 

—

 

 

 

 

 

 

 

 

H14

Indoor intake air temperature sensor

Continue for 5 sec.

—

• Intake air temperature sensor

 

 

abnormality

 

 

 

(detective or disconnected)

 

H15

Outdoor compressor temperature sensor

Continue for 5 sec.

—

• Compressor temperature sensor

 

 

abnormality

 

 

 

(detective or disconnected)

 

H16

Outdoor Current Transformer open

—

—

• Outdoor PCB

 

 

circuit

 

 

• IPM (Power transistor) module

 

 

 

 

 

 

H19

Indoor fan motor merchanism lock

—

—

• Indoor PCB

 

 

 

 

 

• Fan motor

 

H23

Indoor heat exchanger temperature

Continue for 5 sec.

O

• Heat exchanger temperature sensor

 

 

sensor abnormality

 

(Cooling only)

 

(defective or disconnected)

 

H26

Ionizer breakdown

—

—

• Ionizer

 

H27

Outdoor air temperature sensor

Continue for 5 sec.

O

• Outdoor temperature sensor

 

 

abnormality

 

 

 

(defective or disconnected)

 

H28

Outdoor heat exchanger temperature

Continue for 5 sec.

O

• Outdoor heat exchanger

 

 

sensor abnormality

 

 

 

temperature sensor (defective or

 

 

 

 

 

 

disconnected)

 

H33

Indoor/Outdoor wrong connection

—

—

• Indoor/Outdoor supply voltage

 

H38

Indoor / outdoor mismatch (brand code)

—

—

 

—

 

 

 

 

 

 

 

 

H98

Indoor high pressure protection

—

—

• Air filter dirty

 

 

 

 

 

• Air circulation short circuit

 

H99

Indoor heat exchanger anti-freezing

—

—

• Insufficient refrigerant

 

 

protection

 

 

• Air filter dirty

 

 

 

 

 

 

F11

Cooling / Heating cycle changeover

4 times occurance

—

• 4-way valve

 

 

abnormality

within 30 minutes

 

• V-coil

 

 

 

 

 

 

F90

PFC control

4 times occurance

—

• Voltage at PFC

 

 

 

within 10 minutes

 

 

 

 

F91

Refrigeration cycle abnormality

2 times occurance

—

• No refrigerant

 

 

 

within 20 minutes

 

 

(3-way valve is closed)

 

 

 

 

 

 

 

F93

Compressor rotation failure

—

—

• Compressor

 

F95

Cool high pressure protection

4 times occurance

—

• Outdoor refrigerant circuit

 

 

 

within 20 minutes

 

 

 

 

F96

IPM (power transistor) overheating

—

—

• Excess refrigerant

 

 

protection

 

 

• Improper heat radiation

 

 

 

 

 

 

 

 

 

 

• IPM (Power transistor)

 

F97

Outdoor compressor overheating

4 times occurance

—

• Insufficient refrigerant

 

 

protection

within 10 minutes

 

• Compressor

 

 

 

 

 

 

F98

Total running current protection

3 times occurance

—

• Excess refrigerant

 

 

 

within 20 minutes

 

• Improper heat radiation

 

 

 

 

 

 

F99

Outdoor Direct Current (DC) peak

7 times occurance

—

• Outdoor PCB

 

 

detection

continuously

 

• IPM (Power transistor)

 

 

 

 

 

 

 

 

 

 

• Compressor

 

Note:

“O” - Frequency measured and fan speed fixed.

The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until “beep” sound heard following by pressing the “RESET” button at remote controller.

Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error Codes Table) by using remote controller or Auto Switch at indoor unit. However, the remote controller signal receiving sound is changed from one “beep” to four “beep” sounds.

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