VERIFIED
Error code
Amb Thrm Open
Appliance
Wine Refrigerator
Message summary
- Shown: Amb Thrm Open, posted on the user interface by the 3000 series control whenever its input monitoring detects a fault.
- Meaning: an open circuit in the ambient thermistor.
- Models: the 3036 dual-zone U-3036BVWCS-00B and the DWR and ZWC units (L marks the top zone or drawer, R the bottom).
- Manual remedy: contact Customer Care.
Owner adjustments
The solution column offers only that contact. No setting, cleaning or reset is requested of you.
What a technician checks
- The ambient thermistor connection, replacing the thermistor if necessary.
- The main control wire harness, looking for splits or breaks.
Related messages
- Amb Thrm Short is the same circuit shorted.
- Zone T Open is a zone thermistor circuit open.
- Evap T Open is the evaporator thermistor circuit open.
- No Comm means the unit lost its link to the display.
Wine cabinet repair in San Francisco
For a U-Line wine cabinet in San Francisco, call (415) 329-7078 or read the U-Line wine refrigerator repair page. Please keep the exact message wording, the model number and a note of anything you have done close by.
Model compatibility: U-Line reuses codes across series and model years, so Amb Thrm Open may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
