Marvair 20173A Defrost Control Board 30067439-890 OEM Precision: Direct Rheem 62-102860-01

OEM Precision: Direct Rheem 62-102860-01 swap ensures factory-spec timing for inducer and blower cycles

specifically engineered to replace failed blowers in Lennox systems while maintaining factory-specified airflow performance

Modulating Precision: Responds to 4-20 mA signals for fine-tuned atmospheric control and fuel-air ratio adjustments

verify the model requirements for your specific air handler series

The unit features internal

Marvair 20173A Defrost Control Board 30067439-890 OEM Precision: Direct Rheem 62-102860-01The Marvair 20173A Defrost Control Board is the essential HVAC replacement part designed specifically for Marvair heat pump systems requiring reliable defrost cycle management. As the direct replacement for the legacy 20173 board, this updated component integrates seamlessly into existing control panels to manage evaporator coil icing in low ambient conditions. For technicians performing heat pump troubleshooting, the 20173A provides precise timing