Samsung AS07A5MA Service Manual page 21

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Troubleshooting (cont'd)
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
Is #9 of Micom (IC04) DC 5.0 V?
Is the number checking #10 of IC06 (ULN2003A) LOW?
20
operating in five minutes.
NO
YES
RY71 or check cable
YES
Normal
NO
Micom is abnormal.
NO
IC 06 is abnormal.
Replace PCB