Viessmann
Louver Mechanism Jam
Indoor unit louver does not move or is stuck in one position
Advertisements
Possible Causes
Broken louver linkage, Stripped gears in stepper motor assembly, Foreign object jammed in louvers, Failed louver motor
How to Fix / Troubleshooting
Safety: Turn off power before manually moving louvers.
- Remove obstruction: Inspect for and remove any objects caught in the louvers.
- Check linkage: Remove the front cover and inspect the plastic arms and gears; replace any broken parts.
- Test motor: With power restored briefly, activate swing mode and observe if the motor attempts to move. If not, replace the louver motor.
Advertisements
Repair Difficulty
Easy
2/5
Required Part
Louver Stepper Motor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements