Refrigerator TurboCool Setting
The TurboCool™ setting "revs up" the refrigerator, cooling it quickly after frequent or extended door openings and also when hot items are placed inside.
When this feature is selected, the compressor is activated and the fans turn on at high speed. even when the door is open. The fresh food temperature will revert to the coldest setting for an 8 hour period or until TurboCool is turned off (whichever comes first). It maximizes the cooling ability of the fresh food compartment.
You will typically see tC in the temperature display when set to TurboCool. It may look like an EC, an upside down F with a C, or something similar. This is not an error code, it is the Turbo Cool (tC) setting.