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OEM Carrier Integrated Furnace Control Board for PG8UAA048091ABJA
Carrier

OEM Carrier Integrated Furnace Control Board for PG8UAA048091ABJA

SKU: CARRIE-PG8UAA048091ABJA-CONTROL_BOARD-HK42FZ016 Brand: Carrier
✓ Guaranteed to fit PG8UAA048091ABJA — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Integrated Furnace Control Board HK42FZ016 for Model PG8UAA048091ABJA

This OEM Integrated Furnace Control (IFC) Board is the factory-specified replacement for the Carrier PG8UAA048091ABJA gas furnace. Also sold as kit part number 325878-751, this board is the command center of your furnace — sequencing ignition, managing the inducer and blower motors, monitoring safety circuits, and communicating fault codes via LED diagnostics. When the control board fails, symptoms range from complete no-heat lockouts and repeated ignition failures to erratic blower behavior, unresponsive thermostat calls, or a furnace that short-cycles without explanation.

  • Specs: OEM Part Numbers: HK42FZ016 / 325878-751 | Integrated Furnace Control (IFC) | 120V input | 24V control circuit output | Factory-programmed timing sequences | LED fault code diagnostics included
  • OEM vs Generic: This is a genuine Carrier OEM board — pre-programmed with the exact ignition timing, blower delay, and safety lockout logic required by the PG8UAA048091ABJA. Aftermarket boards often use generalized firmware that can trigger nuisance lockouts, void equipment warranties, or fail to communicate correctly with two-stage or variable-speed components.
  • Install Difficulty: 3/5 — Requires disconnecting 120V line voltage. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone or camera (photograph all wiring harness connections before removal), and a multimeter to verify 24V transformer output prior to install. We recommend a licensed HVAC technician for board replacements involving multi-wire harnesses.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PG8UAA048091ABJA packaged gas furnace. Cross-reference both OEM part numbers — HK42FZ016 and 325878-751 — against your unit's data plate and existing board label before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us anytime.

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 PG8UAA048091ABJA?
Yes. This is the factory-specified OEM control board for the Carrier PG8UAA048091ABJA. 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 PG8UAA048091ABJA?
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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