- Jul 9, 2021
- San Francisco
- Model Number
- 6-10 years
Sub-Zero Classic Series (BI) Displays dO Or
My approx 10 year old Sub Zero Classic Series Model 36U over/under displays error message dO Or and door ajar alarm bell. With the door open the interior lights sometimes come on and sometimes not. I can clear the error at the button panel but it soon comes back.
The door switch seems to be operating correctly and I checked/cleared ice buildup in the freezer drawer. What else could cause this alarm?