Panasonic CS-E9EKK Service Manual page 33

12.1.2. Breakdown Self Diagnosis Function
12.1.2.1. 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
contiuously 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 "TEMP" v or V 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
andcode 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 LED will be off if the unit is turned off or the
button on the main unit is pressed.
• To display memorized error (Protective operation)
1. Turn power on.
2. Press the CHECK button on the remote controller
contiuously 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 "TEMP" or button on the remote controller.
Thecode "H00" (no abnormality) will be displayed and
signalwill 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
andcode 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.
2. Press the AUTO button for 5 seconds (A beep receiving
sound) on the main unit to operate the unit at Forced
Cooling Operation modes.
3. Press the CHECK button on the remote controller.
• 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 Code
H23
H27, H28 Cooling, Heating
33
Operation Temporary items
Cooling Emergency Operation
with limited power