Upgrade PCBDM133S Defrost Control Board Replacement for Goodman Furnace

The defrost control board is designed for use in HVACR applications, including models such as ANZ130181AA and APD1424070M41AA (additional compatible models are shown in the product images). The available part numbers for this control board are PCBDM133S, PCBDM133, PCBDM160S, and PCBDM160.

The primary function of this defrost control board is to monitor the commercial air conditioning system's evaporator coil and initiate the defrost cycle when frost formation is detected. This ensures the efficient operation of the HVACR system by preventing ice buildup, which can impede airflow and reduce the system's overall performance.

The defrost cycle duration is set at 12 minutes and can be operated in two modes: "Delay" and "Normal." To enhance the board's reliability and durability, it has been upgraded with high-precision resistors, large-capacity triodes, and long-life relays.

Before installing the defrost control board, it is recommended to conduct field testing and troubleshooting to ensure proper functionality. Once the testing is completed, the board can be installed and operated in the sequence specified by the manufacturer.

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