<Error code display by self-diagnosis and actions to be taken for service (summary)>
Present and past error codes are logged and displayed on the wired remote controller and control board of outdoor unit.
Actions to be taken for service, which depends on whether or not the inferior phenomenon is reoccurring at service, are sum-
10-1. TROUBLESHOOTING
Unit conditions at service
Error code
Actions to be taken for service (summary)
The inferior phenomenon is
reoccurring.
Displayed
Not displayed
Judge what is wrong and take a corrective action accord-
ing to “Self-diagnosis action table” (P.28).
Conduct trouble shooting and ascertain the cause of the
inferior phenomenon according to “Troubleshooting by
inferior phenomena” (P.37).
The inferior phenomenon is
not reoccurring.
Logged
Not logged
1Consider the temporary defects such as the work of
protection devices in the refrigerant circuit including
compressor, poor connection of wiring, noise and etc.
Re-check the symptom, and check the installation en-
vironment, refrigerant amount, weather when the infe-
rior phenomenon occurred, matters related to wiring
and etc.
2Reset error code logs and restart the unit after finishing
service.
3There is no abnormality concerning of parts such as
electrical component, controller board, remote controll-
er and etc.
1Re-check the abnormal symptom.
2Conduct trouble shooting and ascertain the cause of
the inferior phenomenon according to “Troubleshooting
by inferior phenomena” (P.37).
3Continue to operate unit for the time being if the cause
is not ascertained.
4There is no abnormality concerning of parts such as el-
ectrical component, controller board, remote controller
and etc.
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