York ductless indoor unit louvers do not move or are stuck in one position

Safety: Turn off power to the indoor unit before working on the louvers.

• Check for obstructions: Remove any objects blocking the louvers and gently move them by hand to feel for binding.
• Inspect linkage: Remove the front cover and check the plastic linkage arms between the motor and louvers. Replace broken parts.
• Test louver motor: In test mode (if available), command louver movement. If the motor does not respond, replace the louver motor.
• PCB issue: If a new motor does not operate, the indoor PCB may be faulty and require replacement.