HK42FZ008 furnace control board replacement

Your Carrier HK42FZ008 control board's official cross-reference replacement is ICM Controls ICM282B and White-Rodgers 50M56U-751.

Furnace control boards switch 120/240V line voltage and the gas valve. This page is for identifying the correct replacement part only — it is not a wiring or installation guide. Improper installation can cause fire, electrical shock, or gas hazards; have a licensed HVAC technician do the actual replacement.

Replacement boards

ICM Controls ICM282B Source: ICM Controls Cross Reference Guide (LIAF309-2)
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White-Rodgers 50M56U-751 Source: White-Rodgers / Copeland Furnace Controls Reference Card (R-4952, 3/24)
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Board type: Integrated furnace control board

Configuration: Single-stage, PSC

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Sources for this page

ICM Controls Cross Reference Guide (LIAF309-2) Furnace Control Boards section · retrieved 2026-07-19 White-Rodgers / Copeland Furnace Controls Reference Card (R-4952, 3/24) ©2024 Copeland LP · retrieved 2026-07-19