OEM Carrier Integrated Furnace Control Board HK42FZ013 for Model PG8MAA048070ABJA

The Carrier HK42FZ013 is the factory-specified Integrated Furnace Control (IFC) board for the PG8MAA048070ABJA gas furnace. This microprocessor-based board is the brain of the furnace — it sequences every heating cycle by orchestrating the inducer motor, hot surface igniter, gas valve, and blower motor. When this board fails, symptoms typically include a complete no-heat lockout, erratic blower operation, failure to advance past the inducer pre-purge stage, or fault codes flashing on the diagnostic LED. If your furnace starts and immediately shuts down, or never advances to ignition at all, this is the first component to inspect and test.

• Part Number: HK42FZ013 | Cross-reference: CEPL130438-01, CEBD430438 series | Factory-matched to Carrier PG8MAA048070ABJA
• Key Specs: Single-stage HSI (Hot Surface Ignition) control | 24 VAC thermostat compatible | Controls gas valve, ignitor, PSC blower motor, inducer, humidifier, and air cleaner outputs | Onboard diagnostic LED for fault code readout | 98–132 VAC input at 60 Hz
• OEM vs Generic: This is a genuine OEM board built to exact Carrier factory tolerances. Generic or third-party boards may lack correct timing sequences and safety lockout logic, risking nuisance shutdowns or unsafe operation. OEM boards preserve your equipment warranty and ensure code-compliant performance.
• Install Difficulty: 3/5 — Power down and lock out the furnace before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, and a smartphone to photograph all wiring connections before removal. ESD (electrostatic discharge) precautions are critical — always ground yourself to bare metal on the furnace chassis before handling the board. Label every connector. Installation typically takes 30–60 minutes for an experienced DIYer or technician.
• Warranty: OEM manufacturer warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for Carrier model PG8MAA048070ABJA gas furnace. Also replaces HK42FZ004, HK42FZ007, HK42FZ008, HK42FZ009, HK42FZ011, HK42FZ013, and HK42FZ016 series boards on compatible Carrier, Bryant, and Payne units — always verify your existing part number and board revision against your unit's wiring diagram before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today. In stock and ships today.