38 CLIMATE 5000 RAC SINGLE SPLIT (R32) – 6720894076 (2019/08)
Troubleshooting
5.3 Error Diagnosis and Troubleshooting
WARNING
Be sure to turn off unit before any maintenance to prevent damage or
injury.
5.3.1 Remote maintenance
SUGGESTION: When troubles occur, please check the following points
with customers before field maintenance.
Problem Solution
1 Unit will not start Page 41
2 The power switch is on but fans will not
start
Page 41
3 The temperature on the display board
cannot be set
Page 41
4 Unit is on but the wind is not cold(hot) Page 41
5 Unit runs, but shortly stops Page 41
6 The unit startup and stop frequently Page 41
7 Unit runs continuously but insufficient
cooling(heating)
Page 41
8 Cool can not change to heat Page 41
9 Unit is noisy Page 41
Table 10.
5.3.2 Field maintenance
Problem Solution
1 Unit will not start Page 42-43
2 Compressor will not start but fans run Page 42-43
3 Compressor and condenser (outdoor) fan
will not start
Page 42-43
4 Evaporator (indoor) fan will not start Page 42-43
5 Condenser (Outdoor) fan will not start Page 42-43
6 Unit runs, but shortly stops Page 42-43
7 Compressor short-cycles due to overload Page 42-43
8 High discharge pressure Page 42-43
9 Low discharge pressure Page 42-43
10 High suction pressure Page 42-43
11 Low suction pressure Page 42-43
12 Unit runs continuously but insufficient
cooling
Page 42-43
13 Too cool Page 42-43
14 Compressor is noisy Page 42-43
15 Horizontal louver can not revolve Page 42-43
Table 11.
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