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HWE1305A
TROUBLESHOOTING
9. TROUBLESHOOTING
9-1. Troubleshooting
<1> 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 or controller board of outdoor unit.
Actions to be taken for service and the trouble reoccurrence at field are summarized in the table below. Check the
contents below before investigating details.
Unit conditions at service
Error code
Actions to be taken for service (summary)
The trouble is reoccurring.
Displayed
Judge what is wrong and take a corrective action according
to 9-3. Self-diagnosis action table (page31).
Not displayed
Identify the cause of the trouble and take a corrective action
according to 9-4. Troubleshooting of problems (page35).
The trouble is not reoccurring.
Logged
1) Consider 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
environment, refrigerant amount, weather when the
trouble occurred, and wiring related.
2) Reset error code logs and restart the unit after finishing
service.
3) There is no abnormality in electrical components,
controller boards, and remote controller.
Not logged
1) Recheck the abnormal symptom.
2) Identify the cause of the trouble and take a corrective
action according to 9-4. Troubleshooting of problems
(page35).
3) Continue to operate unit for the time being if the cause is
not ascertained.
4) There is no abnormality in electrical components,
controller boards, remote controller etc.
