Heat Controller MSS-024B/A, MSH-0186/A, MSS-018B/A manual When Vertical Louver does not operate

6.When Vertical Louver does not operate.

"Confirm that the Vertical Louver is normally geared with the shaft of Stepping Motor.

"ft the regular torque is detected when rotating the Vertical Louver with hands ý Normal

"Check the connecting condition of CN-UP/DOWN Connector

"Check the soldering condition(on PWB) of CN-UP/DOWN Connector

ICheck the operating circuit of the Vertical Louver

"Confirm that there is DC +12V between pinp(RED) of CN-UP/DOWN and GND.

"Confirm that there is a soldering short at following terminals.

-Between ®, ®, ® and ® of MICOM

-Between p, p, p and ® of IC7

-Between ®, ®, ®and ® of IC7

-Between G), (D, Z ® and sp of CN-UP/DOWN

-[D-

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 Lower

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