Display shows tC and the turbo cool feature may not operate correctly.

Safety first: No internal access is usually required for this code.

tC relates to the Turbo Cool feature, which rapidly lowers refrigerator temperature.

• Toggle Turbo Cool: Turn Turbo Cool off and back on using the control panel. Observe if the indicator and fan/compressor behavior change.
• Power reset: Unplug the refrigerator for 5 minutes, then restore power and test Turbo Cool again.
• Check UI response: If the tC indicator is stuck or unresponsive, the user interface board may be failing.
• Professional diagnosis: If Turbo Cool does not function and tC persists, the main control board or related relays may need to be tested and replaced.