reducing the risk of intermittent flame sensing failures and costly callbacks on critical environment heating equipment

Featuring a 24-inch probe

This precise regulation is essential for HVAC system efficiency

OEM Reliability: Direct-fit replacement ensures compatibility with existing wiring harnesses and mounting ports

It is rated for 15A/20A applications

Marvair 20173A Defrost Control Board THPU32HP7Y reducing the risk of intermittentThe 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