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OEM Carrier Integrated Furnace Control Board HK42FZ016 — GB1AAV024065A
Carrier

OEM Carrier Integrated Furnace Control Board HK42FZ016 — GB1AAV024065A

SKU: CARRIE-GB1AAV024065ADJA-CONTROL_BOARD-HK42FZ016 Brand: Carrier

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Integrated Furnace Control Board HK42FZ016 for Model GB1AAV024065ADJA

This is the factory OEM integrated furnace control board (IFC) for the Carrier GB1AAV024065ADJA gas furnace, sold under OEM part numbers HK42FZ016 and kit number 325878-751. The control board is the central brain of your furnace — it sequences the inducer motor, hot surface igniter, gas valve, and blower in precise timing. When this board fails, symptoms range from hard lockouts with blinking fault codes, intermittent no-heat calls, ignition sequence failures, or a furnace that simply will not respond to a thermostat signal at all. Replacing with the correct OEM board restores factory timing, fault diagnostics, and safety lockout behavior.

  • Specs: OEM Part Numbers HK42FZ016 / 325878-751 | Integrated furnace control (IFC) board | 24V control circuit | Compatible with single-stage gas valve and HSI igniter sequence | Built-in diagnostic LED fault code display
  • OEM vs Generic: OEM boards carry factory-programmed timing and safety lockout logic specific to the GB1AAV024065ADJA. Aftermarket boards may use generic timing profiles that can shorten heat exchanger life, void remaining equipment warranties, and trigger nuisance lockouts.
  • Install Difficulty: 3/5 — Disconnect power and gas before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone or camera to photograph all wiring harness connections before removal. Transfer wiring harnesses one connector at a time to avoid miswiring. Refer to the wiring diagram printed on the furnace cabinet door.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed by 3 PM EST ship same business day from our climate-controlled warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier model GB1AAV024065ADJA. Always verify your existing board's part number (HK42FZ016 or 325878-751) against your furnace data plate and wiring diagram before ordering. Not sure it fits? Our HVAC parts specialists verify fitment at no charge — contact us before you order.

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 $75
  • 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 HK42FZ016 — GB1AAV024065A?
Yes. This is the factory-specified OEM control board for the Carrier OEM Carrier Integrated Furnace Control Board HK42FZ016 — GB1AAV024065A. 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 HK42FZ016 — GB1AAV024065A?
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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