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CS-E18EKK CU-E18EKK / CS-E21EKK CU-E21EKK
12.3. Breakdown Self Diagnosis Function
12.3.1. Self Diagnosis Function (Three Digits Alphanumeric Code)
• Once abnormality has occurred during operation, the unit
will stop its operation, and Timer or both Timer and ION
LEDs blink.
• 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 or both timer and ION LEDs 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 "TEMP"
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 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)
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 "TEMP"
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.
or
button on the remote
or
button on the remote
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 mode.
3. Press the CHECK button on the remote controller.
• Temporary
Operation
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
Cooling
H27, H28
Cooling, Heating
36
(Depending
on
breakdown
Operation
Temporary items
Emergency Operation
with limited power
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