Safety: Unplug the unit before removing interior panels.

Steps to restore dual-zone function:

1. Confirm settings: Set the two zones to significantly different temperatures and monitor for several hours.
2. Inspect divider and seals: Check the physical divider between zones for gaps or missing seals that allow free air mixing.
3. Check for a damper: Some models use a motorized damper to control airflow between zones. Access the divider area and verify the damper moves when changing settings (requires power and caution).
4. Test zone thermistors: Measure resistance of each zone's sensor and compare. Replace any sensor with abnormal readings.
5. Replace faulty components: If the damper is stuck open or closed, replace the damper assembly. If sensors are good but control is not independent, replace the main control board.

Note: In some budget dual-zone designs, zones are not fully independent; consult the user manual to understand design limitations.

Dual-zone Insignia wine cooler: temperatures in both zones are the same and do not maintain separate setpoints.

Possible Causes