Operating instructions

En-10
ERRORS AND SELF DIAGNOSIS
SELF-DIAGNOSIS
(1) Stop the air conditioner operation.
(2) Press the SET TEMP. buttons
and at
the same time for more than 5 seconds to
start the self-diagnosis.
* For information on the error codes, refer to
the installation manualfor the indoor unit.
(3) Press the SET TEMP. buttons
and at
the same time to stop the self-diagnosis.
Unit number (usually “00”)
Example: Self-diagnosis check
Error code
Error Code Error contents
Communication error
(indoor unit remote controller)
Communication error
(indoor unit
outdoor unit)
Room temperature sensor open
Room temperature sensor shortcircuited
Indoor heat exchanger temperature
sensor open
Indoor heat exchanger temperature
sensor shortcircuited
Outdoor heat exchanger temperature
sensor open
Outdoor heat exchanger temperature
sensor shortcircuited
Power source connection error
Float switch operated
Outdoor temperature sensor open
Outdoor temperature sensor shortcircuited
Discharge pipe temperature sensor open
Discharge pipe temperature sensor
shortcircuited
Outdoor high pressure abnormal
Discharge pipe temperature abnormal
Model abnormal
Indoor fan abnormal
Outdoor signal abnormal
Outdoor EEPROM abnormal
When “EE:EE” in Temperature Display is
displayed, inspection of the air conditioning
system is necessary. Please consult authorized
service personnel.
9365751053_OM.indb 109365751053_OM.indb 10 28-Mar-18 11:37:3428-Mar-18 11:37:34