OEM Carrier Integrated Furnace Control Board HK42FZ036 for Model PG92SBS48100CAAA

The HK42FZ036 is the factory-specified Integrated Furnace Control (IFC) board for the Carrier PG92SBS48100CAAA packaged gas unit. This board is the central brain of your furnace — it sequences the inducer, igniter, gas valve, and blower motor in precise timing cycles. When it fails, symptoms range from hard lockouts and error code flashes, to no ignition attempts, erratic blower behavior, or a completely unresponsive unit.

• Specs: OEM Part Number HK42FZ036 | Integrated Furnace Control (IFC) board | 24V control circuit | Compatible with single-stage gas valve sequence | On-board LED diagnostics for fault code readout
• OEM vs Generic: This is a genuine OEM Carrier board — firmware, timing delays, and safety thresholds are factory-calibrated for the PG92SBS48100CAAA. Aftermarket boards often ship with mis-matched timing that can cause nuisance lockouts, voided warranties, or repeated ignition failures.
• Install difficulty: 3/5 — Requires shutting off 120V power and gas supply before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone/camera to photograph all wiring harness connections before removal. Transfer one connector at a time to avoid miswiring.
• Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier PG92SBS48100CAAA packaged gas units. Always verify the part number printed on your existing board's label before ordering — sub-variants of this model series may use a different IFC revision. Our fitment specialists are available to confirm compatibility before you purchase. In stock — ships today.