Complementary AG or AH series actuators must be purchased separately

Direct Compatibility: Engineered specifically for the Hankison K-8005 series for an exact mechanical fit

the blower motor running continuously while the burners stay off

Technicians should verify the furnace model number and serial number against the parts list to confirm the specific collector box revision required

Carrier HH79NZ027 Immersion Thermistor 30067439-890 Complementary AG or AH seriesThe Carrier HH79NZ027 Immersion Thermistor is a critical NTC temperature sensor engineered for precise thermal monitoring within Carrier and Bryant HVAC systems. Designed for direct insertion into fluid streams, this 10k ohm thermistor provides real time resistance feedback to the control board, ensuring accurate modulation of heating and cooling cycles. This OEM replacement part is essential for maintaining system safety parameters and preventing