Wednesday, December 23, 2015

PANASONIC Air Conditioner Self diagnostics and error codes

Indoor Unit - CS-E10KB4EA Outdoor Unit -CU-E10HBEA
Breakdown Self Diagnosis Function
Self Diagnosis Function (Three Digits Alphanumeric Code)
# Once abnormality has occurred during operation, the unit will stop its operation, and Timer LED blinks.
# Although Timer LED goes off when power supply is turned off, if the unit is operated under a breakdown condition, the LED will light up again.
# In operation after breakdown repair, the Timer LED will no more blink. The last error code (abnormality) will be stored in IC memory.
# To make a diagnosis
1. Timer LED start to blink and the unit automatically stops the operation.
2. Press the CHECK button on the remote controller continuously for 5 seconds.
3. “- -” will be displayed on the remote controller display.
Note: Display only for “- -”. (No transmitting signal, no receiving sound and no Power LED blinking.)
4. Press the “TIMER” UP or DOWN button on the remote controller. The code “H00” (no abnormality) will be displayed and signal will be transmitted to the main unit.
5. Every press of the button (up or down) will increase abnormality numbers and transmit abnormality code signal to the main unit.
6. When the latest abnormality code on the main unit and code transmitted from the remote controller are matched, power LED will light up for 30 seconds and a beep sound (continuously for 4 seconds) will be heard. If no codes are matched, power LED will light up for 0.5 seconds and no sound will be heard.
7. The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operation the unit for 30 seconds.
8. The LED will be off if the unit is turned off or the RESET button on the main unit is pressed.
To display memorized error (Protective operation) status:
1. Turn power on.
2. Press the CHECK button on the remote controller continuously for 5 seconds.
3. “- -” will be displayed on the remote controller display.
Note: Display only for “- -”. (No transmitting signal, no receiving sound and no Power LED blinking.)
4. Press the “TIMER” UP or DOWN button on the remote controller. The code “H00” (no abnormality) will be displayed and signal will be transmitted to the main unit. The power LED lights up. If no abnormality is stored in the memory, three beeps sound will be heard.
5. Every press of the button (up or down) will increase abnormality numbers and transmit abnormality code signal to the main unit.
6. When the latest abnormality code on the main unit and code transmitted from the remote controller are matched, power LED will light up for 30 seconds and a beep sound (continuously for 4 seconds) will be heard. If no codes are matched, power LED will light up for 0.5 seconds and no sound will be heard.
7. The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operating the unit for 30 seconds.
8. The same diagnosis can be repeated by turning power on again.
To clear memorized error (Protective operation) status after repair:
1. Turn power on (in standby condition).
2. Press the AUTO button for 5 seconds (A beep receiving sound) on the main unit to operate the unit at Forced Cooling Operation mode.
3. Press the CHECK button on the remote controller for about 1 second with a pointed object to transmit signal to main unit. A beep sound is heard from main unit and the data is cleared.
Temporary Operation (Depending on breakdown status)
1. Press the AUTO button (A beep receiving sound) on the main unit to operate the unit. (Remote control will become possible.)
2. The unit can temporarily be used until repaired.
Error Codes Table
Diagnosis display
Abnormality / Protection control
H00
No abnormality detected
H11
Indoor / outdoor abnormal communication
H12
Connection capability rank abnormal
H14
Indoor intake air temperature sensor abnormality
H15
Outdoor compressor temperature sensor abnormality
H16
Outdoor Current Transformer open circuit
H19
Indoor fan motor merchanism lock
H21
Indoor float switch operation abnormal
H23
Indoor heat exchanger temperature sensor 1 abnormality
H24
Indoor heat exchanger temperature sensor 2 abnormality
H27
Outdoor air temperature sensor abnormality
H28
Outdoor heat exchanger temperature sensor abnormality
H30
Discharge temperature sensor abnormality
H33
Indoor/Outdoor wrong connection
H35
Indoor drain water adverse current abnormal
H38
Indoor/Outdoor mismatch
H97
Outdoor Fan Motor lock abnormality
H98
Indoor high pressure protection
H99
Indoor heat exchanger anti-freezing protection
F11
Cooling / Heating cycle change over abnormality
F90
PFC control
F91
Refrigeration cycle abnormality
F93
Outdoor compressor abnormal revolution
F95
Cool high pressure protection
F96
IPM (power transistor) overheating protection
F97
Outdoor compressor overheating protection
F98
Total running current protection
F99
Outdoor Direct Current (DC) peak detection