Goodman 1084-83-200D PCBDM101 Heat Pump Defrost Control Circuit Board is the defrost‑control module used in Goodman heat pump systems to manage the defrost cycle. It is identified by the model numbers 1084-83-200D and PCBDM101, aiding replacement matching and service documentation. This circuit board regulates frost removal during heating operation to maintain coil efficiency and consistent heat output.
