20
Troubleshooting (cont’d)
ΙΙΙΙΙΙ
5. When there is no cool air in the current mode
5. When there is no cool air in the current mode
1) Checklist :
(1) Is the set temperature of the remote control lower than room temperature in the Cool mode?
(2) Is the Indoor PCB properly connected with the CN71 connector?
2) Troubleshooting procedure
After training on, the Cooling starts
operating in five minutes.
Is #9 of Micom (IC04) DC 5.0 V?
Is the number checking #10 of IC06 (ULN2003A) LOW?
RY71 or check cable
NO
YES
NO
NO
YES
Normal
Micom is abnormal.
IC 06 is abnormal.
Replace PCB
AS07AS(6)MA SM_E 1/7/04 6:07 PM Page 20
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