Troubleshooting
Page 77
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 79-80
2 The power switch is on but fans will not start Page 79-80
3 The temperature on the display board cannot be set Page 79-80
4 Unit is on but the wind is not cold(hot) Page 79-80
5 Unit runs, but shortly stops Page 79-80
6 The unit starts up and stops frequently Page 79-80
7 Unit runs continuously but insufficient cooling(heating) Page 79-80
8 Cool can not change to heat Page 79-80
9 Unit is noisy Page 79-80
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