Whirlpool 6th Sense FreshControl Total NoFrost Refrigerator: BioFresh / 0°C Chiller / FreshBox drawer NTC sensor fault F5; zero-degree precision climate zone fails to regulate.
On Whirlpool refrigerators (Whirlpool 6th Sense sensor algorithms and WAVE / L1373 electronic platform architecture): NTC probe cable pinched beneath crisper drawer rail, cracked sensor housing, or moisture contamination in connector.
Isolate mains power. Remove chiller drawer and inspect NTC sensor probe mounted in drawer air canal. Measure resistance (~16 kΩ at 0°C). Replace sensor. Press and hold Fast Freeze and Temp buttons simultaneously for 3 seconds until audible confirmation beep sounds.
