Keep the cellar closed
Limit door openings so the room retains as much cool air as possible while the problem is assessed.
What to do when your wine cellar stops cooling.
A calm, practical response can help protect cellar conditions while the refrigeration problem is diagnosed.
Confirm the temperature
Check a second reliable thermometer if one is available. Note the current reading, when the rise began and whether it is continuing.
Look for simple clues
Without opening equipment, note alarms, unusual sounds, visible water, blocked airflow or a blank thermostat display.
Call for refrigeration service
A rising cellar temperature deserves prompt review. Share the equipment make, recent readings, service history and any alarms with the technician.
Plan around the collection
If conditions continue to deteriorate, discuss whether temporary relocation is appropriate. Options depend on collection size, timing and available capacity.