and B1HA series units

Is the SA150-106R compatible with older mercury switch models

The Johnson Controls A70KA-1 Control is a heavy-duty

or the AC compressor running constantly without reaching the set temperature

Standardized Fitment: Designed for straightforward integration with existing venturi and flange assemblies to minimize downtime on the job site

Nordyne 1045845R Defrost Board 320735-701 and B1HA series unitsThe Nordyne 1045845R Defrost Board is the primary OEM replacement for the aging 1035831R and 624813 control modules. As an essential component for heat pump defrost control, this board manages the critical transition between heating and cooling modes to prevent evaporator coil icing. For veteran techs, this board is a drop in solution for Nordyne, Intertherm, and Miller units, ensuring the reversing valve and outdoor fan motor switch at precise