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OEM Carrier Integrated Furnace Control Board HK42FZ016 — GB1AAV024070A
Carrier

OEM Carrier Integrated Furnace Control Board HK42FZ016 — GB1AAV024070A

SKU: CARRIE-GB1AAV024070AFJA-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 GB1AAV024070AFJA

This is the factory-original integrated furnace control (IFC) board for the Carrier GB1AAV024070AFJA gas furnace. The control board is the central brain of your heating system — it sequences the inducer motor, hot surface igniter, gas valve, and blower, while continuously monitoring safety inputs from the pressure switch and flame sensor. When this board fails, symptoms range from a complete no-heat lockout and persistent error codes to erratic ignition attempts, a blower that won't shut off, or a furnace that starts but immediately shuts down. OEM part numbers HK42FZ016 and kit designation 325878-751 both reference this same factory board assembly.

  • Specs: 24V control circuit | Compatible with single-stage gas valve | Integrated fault code LED diagnostics | Matches factory sequencing timings and safety lockout logic for GB1AAV024070AFJA
  • OEM vs Generic: OEM control boards ship with the correct firmware, terminal layout, and safety trip thresholds pre-configured at the factory. Aftermarket boards frequently require jumper adjustments, may misread flame sensor signals, and carry a higher callback rate among HVAC technicians.
  • Install difficulty: 3/5 — Requires disconnecting 24V and line-voltage wiring harnesses. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, smartphone to photograph all wiring before disconnecting. Power off and verify zero voltage at board before handling. Flash error codes on existing board for diagnostics before replacement.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our climate-controlled warehouse.

Compatibility: Engineered as a direct drop-in replacement for Carrier GB1AAV024070AFJA gas furnaces. Cross-references OEM part numbers HK42FZ016 and 325878-751. Confirm your existing board's part number on the board label or furnace data plate before ordering. Need fitment verification? Our parts specialists confirm compatibility before your order ships — no guesswork, no returns.

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 — GB1AAV024070A?
Yes. This is the factory-specified OEM control board for the Carrier OEM Carrier Integrated Furnace Control Board HK42FZ016 — GB1AAV024070A. 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 — GB1AAV024070A?
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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