OEM Carrier Furnace Control Board HK42FZ013 for Model PG9MAB036060ACSA

The Carrier HK42FZ013 is the factory integrated furnace control (IFC) board for the PG9MAB036060ACSA gas furnace. As the brain of the heating system, this microprocessor-based board orchestrates every operating sequence — from inducer pre-purge and hot surface ignition through gas valve timing, blower motor staging, and post-purge shutdown. When this board fails, symptoms typically include a complete no-heat lockout, an ignition sequence that starts but aborts, erratic blower behavior, or a furnace that trips the pressure switch circuit before firing. The board's onboard diagnostic LED provides fault codes that help narrow down whether the issue is the board itself or a downstream component.

• Specs: Input range 98–132 VAC at 60 Hz | Ignitor output: 5A at 120 VAC | Cool blower: 30A, 2 HP, 240 VAC | Heat blower: 5A, 1/2 HP, 240 VAC | Inducer motor: 4A at 120 VAC | Compatible with 24 VAC standard thermostat | OEM part number: HK42FZ013 | Cross-reference: CEPL130438-01, CEBD430438
• OEM vs Generic: This is the genuine Carrier OEM board, factory-programmed with exact ignition trial timing (5-second trial, 3 retries) and blower delay profiles matched to the PG9MAB036060ACSA heat exchanger. Generic aftermarket boards may use broader timing tolerances that can stress the heat exchanger or result in nuisance lockouts over time.
• Install difficulty: 3/5 — Requires disconnecting 24V low-voltage wiring harness, line-voltage blower and inducer leads, and gas valve terminals. Always photograph all connector positions before removal. Tools needed: #2 Phillips screwdriver, 1/4" nut driver, needle-nose pliers, and a multimeter to verify 24VAC signal before condemning the board. Discharge any capacitors and shut off power at the disconnect before starting.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our stocked warehouse.

Compatibility: Direct OEM replacement for Carrier model PG9MAB036060ACSA gas furnace. Also cross-references CEPL130438-01 and CEBD430438 board assemblies. Verify your existing board's part number label before ordering — if your board shows an HK42FZ0XX suffix, contact our team for fitment confirmation. Questions about compatibility? Our HVAC parts specialists verify fitment before you order — reach out via chat or phone for same-day assistance.