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OEM Carrier Integrated Furnace Control Board HK42FZ018 — PG9YAB048080A
Carrier

OEM Carrier Integrated Furnace Control Board HK42FZ018 — PG9YAB048080A

SKU: CARRIE-PG9YAB048080AAAA-CONTROL_BOARD-HK42FZ018 Brand: Carrier
✓ Guaranteed to fit PG9YAB048080A — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Integrated Furnace Control Board HK42FZ018 for Model PG9YAB048080AAAA

This is the factory OEM Integrated Furnace Control (IFC) board for the Carrier PG9YAB048080AAAA gas furnace. As the central brain of your heating system, the control board orchestrates every stage of the ignition sequence — inducer startup, hot surface ignition, gas valve activation, and blower operation — while continuously monitoring all safety switches and sensors. When this board fails, symptoms typically include the furnace going into lockout after one or more ignition attempts, erratic short-cycling, failure to energize the inducer motor, or a completely unresponsive system with no LED status codes. Replacing with the correct OEM board restores factory-programmed logic, precise timing, and full diagnostic LED functionality.

  • Part Number: HK42FZ018 | Cross-references: CEPL130590-01, CEBD430590-10A | OEM Carrier factory replacement
  • OEM vs Generic: This OEM board retains the exact firmware, relay ratings, and diagnostic fault-code LED sequence engineered for the PG9YAB048080AAAA. Aftermarket boards may use substitute relay specs and lack full diagnostic code parity, potentially masking underlying system faults.
  • Install Difficulty: 3/5 — Requires disconnecting 120V line power and 24V control wiring. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone or camera for wiring photos before removal. Label every connector before unplugging. Takes 30–60 minutes for an experienced DIYer or technician.
  • Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Direct OEM replacement for Carrier model PG9YAB048080AAAA packaged gas furnace. Also fits select Carrier, Bryant, and Payne furnace models that share the HK42FZ018 board specification — verify your existing board's part number against your unit's data plate before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy. Order now — in stock and ships today.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $99
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Control Board fit my Carrier OEM Carrier Integrated Furnace Control Board HK42FZ018 — PG9YAB048080A?
Yes. This is the factory-specified OEM control board for the Carrier OEM Carrier Integrated Furnace Control Board HK42FZ018 — PG9YAB048080A. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the control board on my Carrier OEM Carrier Integrated Furnace Control Board HK42FZ018 — PG9YAB048080A?
Difficulty: Advanced (1–2 hrs)
Step 1: Turn off breaker. Step 2: PHOTOGRAPH all wire connections before touching anything. Step 3: Label each wire with tape. Step 4: Disconnect all wires, remove old board. Step 5: Mount new board, reconnect all wires matching your photo exactly. Step 6: Restore power and test all modes. Exact part number match is critical.
My HVAC system is completely dead. What could be wrong?
Completely dead HVAC (no LED on board) = failed control board or blown fuse. Check board fuse first (3A or 5A, costs $1–$5). If fuse is good and board has power but no LED, board is dead. Always photograph wiring before replacing.
Is this control board compatible with Bryant or Payne too?
Many Carrier parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Carrier control board?
OEM essential. Control boards are model-specific with precise firmware and connector layouts. Aftermarket boards rarely match all functions and can cause intermittent failures or safety issues. Always match the exact OEM part number.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
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