S1-031-03754-000 York BOARD CIRCUIT DEFROST RESPAC

The S1‑031‑03754‑000 York Circuit Defrost Board is another OEM defrost‑control variant used across York, Coleman, and Luxaire heat pump platforms. Since your active tab is the Shopify Add Product page for HVAC control boards, the content below is formatted to drop directly into that workflow while keeping consistency with the other boards you’ve already built out.

The S1‑031‑03754‑000 York Defrost Circuit Board is an OEM replacement designed for York, Coleman, and Luxaire heat pump systems. This board controls the outdoor coil defrost cycle by monitoring temperature inputs, sequencing the compressor and outdoor fan, and initiating defrost only when required to prevent ice accumulation. Its rigid PCB construction ensures stable operation, accurate timing, and long‑term reliability in residential HVAC applications. This is the correct replacement when systems experience coil freeze‑ups, short‑cycling, or inconsistent defrost behavior due to a failing control board.

The S1‑031‑03754‑000 is used in select Johnson Controls heat pump systems, including:

• York heat pump units

• Coleman heat pump units

• Luxaire heat pump units

It supports timed/temperature‑initiated defrost cycles and is used to correct issues such as coil freeze‑ups, short‑cycling, or improper defrost operation.

Common equivalent or superseded numbers associated with this board include:

• 031‑03754‑000

• S103103754000

• 03103754000

• OEM York/Coleman/Luxaire defrost control equivalents

This board is part of the same York/Coleman/Luxaire defrost‑control family as:

• S1‑031‑01971‑000

• S1‑031‑01975‑000

• S1‑031‑01976‑000

• S1‑031‑03004‑000

• S1‑031‑03498‑001 (demand‑defrost)

• S1‑031‑03754‑000 (this listing)