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OEM Carrier Furnace Control Board IFC for PG96VAT60100CAAA
Carrier

OEM Carrier Furnace Control Board IFC for PG96VAT60100CAAA

SKU: CARRIE-PG96VAT60100CAAA-CONTROL_BOARD-HK42FZ050 Brand: Carrier
✓ Guaranteed to fit PG96VAT60100CAAA — 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 HK42FZ050 for Model PG96VAT60100CAAA

The HK42FZ050 is the factory OEM integrated furnace control (IFC) board for the Carrier PG96VAT60100CAAA 96% AFUE variable-speed gas furnace. This board is the central brain of the system — it sequences every heating and cooling operation, including the two-stage gas valve, hot surface igniter, variable-speed ECM blower motor, inducer motor, and communicating thermostat interface. When it fails, common symptoms include a hard lockout with blinking fault codes, the furnace failing to ignite or immediately shutting down, erratic blower behavior, or a completely unresponsive system with no call for heat.

  • Specs: OEM Part# HK42FZ050 | Designed for 96% AFUE two-stage variable-speed furnaces | 24 VAC control circuit | Compatible with communicating and conventional thermostat wiring | Diagnostic LED fault code display
  • OEM vs Generic: This is the genuine factory-original Carrier board — not an aftermarket substitute. OEM boards preserve exact ignition timing, blower ramp profiles, and safety lockout logic programmed for the PG96VAT60100CAAA. Generic boards may omit variable-speed ECM communication protocols, risking improper blower speed staging and voided equipment warranties.
  • Install difficulty: 4/5 — Variable-speed communicating furnace boards require careful wire mapping and ECM motor connector sequencing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, phone/camera to photograph all wiring before removal. Recommend professional installation to preserve manufacturer warranty.
  • Warranty: 1-year OEM factory warranty against manufacturing defects. Ships same business day from our warehouse in original manufacturer packaging.

Compatibility: Engineered specifically for the Carrier PG96VAT60100CAAA packaged 96% AFUE variable-speed two-stage gas furnace. Verify your unit's OEM part number on the data plate or existing board before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you check out — orders placed by 3 PM ship the same day.

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 PG96VAT60100CAAA?
Yes. This is the factory-specified OEM control board for the Carrier PG96VAT60100CAAA. 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 PG96VAT60100CAAA?
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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