6.When Vertical Louver does not operate.
•Confirm that the Vertical Louver is normally geared with the shaft of Stepping Motor.
•If the regular torque is detected when rotating the Vertical Louver with hands 
Normal
•Check the connecting condition of
•Check the soldering condition(on PWB) of
Check the operating circuit of the Vertical Louver
•Confirm that there is DC +12V between pin
(RED) of
•Confirm that there is a soldering short at following terminals.
-Between 62 , 61 , 60 and 59 of MICOM
-Between 57 , 56 , 55 and 54 of MICOM
-Between 51 , 50 , 49 and 48 of MICOM
- Between 1 , 2 , 3 , 4 and 5 of
If there are no problems after above checks
•Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver
- 47 -