Troubleshooting
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3. Error Diagnosis and Troubleshooting Without Error Code
WARNING
Be sure to turn off unit before any maintenance to prevent damage or injury.
3.1 Remote maintenance
SUGGESTION: When troubles occur, please check the following points with customers before field maintenance.
Problem Solution
1 Unit will not start Page 90-91
2 The power switch is on but fans will not start Page 90-91
3 The temperature on the display board cannot be set Page 90-91
4 Unit is on but the wind is not cold(hot) Page 90-91
5 Unit runs, but shortly stops Page 90-91
6 The unit starts up and stops frequently Page 90-91
7 Unit runs continuously but insufficient cooling(heating) Page 90-91
8 Cool can not change to heat Page 90-91
9 Unit is noisy Page 90-91