OEM Carrier Integrated Furnace Control Board HK42FZ061 for Model PG8MAA036070AGJA

This is the OEM factory-replacement integrated furnace control (IFC) board for the Carrier PG8MAA036070AGJA gas furnace. The control board is the command center of your furnace — it sequences the inducer motor, igniter, gas valve, and blower fan while monitoring safety inputs from the pressure switch, limit switch, and flame sensor. Common failure symptoms include a flashing fault code on the board's LED, the furnace going into lockout after repeated ignition attempts, erratic blower behavior, or a completely dead unit with no response to thermostat calls.

• Specs: OEM Part Number HK42FZ061 | 120V input | 24V control circuit output | Integrated fault-code LED diagnostics | Factory-programmed timing sequences for the PG8MAA036070AGJA platform
• OEM vs Generic: This is a genuine Carrier OEM board with factory-programmed logic, exact connector pinouts, and certified timing delays. Generic or aftermarket boards may have incorrect blower off-delays or missing fault codes, leading to comfort and safety issues.
• Install Difficulty: 3/5 — Requires powering down and locking out the furnace at the breaker and gas shutoff. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone/camera to photograph all wiring harness connections before removal. Static wrist strap recommended to protect board electronics. Average tech time: 30–60 minutes.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our stocked warehouse.

Compatibility: Directly replaces the factory control board in the Carrier PG8MAA036070AGJA 80% AFUE gas furnace. Always verify your existing board's part number label before ordering. If you are unsure of fitment, our HVAC parts specialists can confirm compatibility before you purchase — same-day shipping available on all in-stock orders.