Panasonic Air Conditioner

15.4. Error Codes Table

Diagnosis display

Abnormality / Protection control

Abnormality

Judgement

Emergency operation

Primary location to verify

H00

H11

H12

H14

H15

H16

H19

H23

H25

No abnormality detected

Indoor / outdoor abnormal communication

Connection capability rank abnormal

Indoor intake air temperature sensor abnormality

Outdoor compressor temperature sensor abnormality

Outdoor Current Transformer open circuit

Indoor fan motor merchanism lock

Indoor heat exchanger temperature sensor abnormality

E-Ion breakdown

— Normal operation

> 1 min after starting operation

Indoor fan operation only

—

Continue for 5 sec.

—

—

Continue for 5 sec.

—

—

Continue for 5 sec.

—

Continue for 5 sec.

Continue for 5 sec.

Continue for 5 sec.

—

—

—

O

(Cooling only)

—

O

O

—

—

• Internal / external cable connections

• Indoor / Outdoor PCB

—

• Intake air temperature sensor

(defective or disconnected)

• Compressor temperature sensor

(defective or disconnected)

• Outdoor PCB

• IPM (Power transistor) module

• Indoor PCB

• Fan motor

• Heat exchanger temperature sensor

(defective or disconnected)

• Indoor PCB

• E-Ion PCB

• Outdoor temperature sensor (defective or disconnected)

• Outdoor heat exchanger temperature sensor (defective or disconnected)

• Discharge temperature sensor

H27

H28

H30

H33

H38

H58

H97

H98

H99

F11

F90

F91

F93

F95

F96

F97

F98

F99

Outdoor air temperature sensor abnormality

Outdoor heat exchanger temperature sensor abnormality

Discharge temperature sensor abnormality

Indoor/Outdoor wrong connection

Indoor/Outdoor mismatch (brand code)

Abnormal gas sensor

Outdoor Fan Motor lock abnormality

Indoor high pressure protection

Outdoor compressor overheating protection

Total running current protection

Outdoor Direct Current (DC) peak detection

—

—

Continue for 6 hours

—

—

Indoor heat exchanger anti-freezing protection

Cooling / Heating cycle changeover abnormality

PFC control

—

Refrigeration cycle abnormality 7 times occurance continuously

Outdoor compressor abnormal revolution 4 times occurance within 20 minutes

Cool high pressure protection

4 times occurance within 30 minutes

4 times occurance within 10 minutes

IPM (power transistor) overheating protection

4 times occurance within 20 minutes

—

4 times occurance within 20 minutes

3 times occurance within 20 minutes

7 times occurance continuously

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

• Indoor/Outdoor supply voltage

—

• Gas sensor

(defective or disconnected)

• Outdoor PCB

• Outdoor Fan Motor

• Air filter dirty

• Air circulation short circuit

• Insufficient refrigerant

• Air filter dirty

• 4-way valve

• V-coil

• Voltage at PFC

• No refrigerant

(3-way valve is closed)

• Outdoor compressor

• Outdoor refrigerant circuit

• Excess refrigerant

• Improper heat radiation

• IPM (Power transistor)

• Insufficient refrigerant

• Compressor

• Excess refrigerant

• Improper heat radiation

• Outdoor PCB

• 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 “CHECK” button at Remote Control.

Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error

Codes Table) by using Remote Control or Auto Switch at indoor unit. However, the Remote Control signal receiving sound is changed from one “beep” to four “beep” sounds.

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