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OEM Carrier Defrost Control Board HK32EA008 for PH4GPAA36000AA
OEM Carrier Defrost Control Board HK32EA008 for PH4GPAA36000AA
OEM Carrier Defrost Control Board HK32EA008 for PH4GPAA36000AA
OEM Carrier Defrost Control Board HK32EA008 for PH4GPAA36000AA
OEM Carrier Defrost Control Board HK32EA008 for PH4GPAA36000AA
Carrier

OEM Carrier Defrost Control Board HK32EA008 for PH4GPAA36000AA

SKU: CARRIE-PH4GPAA36000AA-CONTROL_BOARD-HK32EA008 Brand: Carrier
✓ Guaranteed to fit PH4GPAA36000AA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Defrost Control Board HK32EA008 for Model PH4GPAA36000AA

This is the genuine OEM defrost control board (part number HK32EA008), factory-specified for the Carrier PH4GPAA36000AA heat pump. The defrost control board monitors outdoor coil temperature sensors and governs the transition between heating and defrost modes, preventing frost and ice accumulation on the outdoor coil during cold-weather operation. When this board fails, common symptoms include the outdoor unit icing over completely, the system locking out of heating mode, erratic or non-existent defrost cycles, or the unit failing to recover from a defrost event and resuming normal heating.

  • Specs: OEM part HK32EA008 | Replaces HK32EA003 | Selectable defrost intervals: 30 / 60 / 90 / 120 minutes | Includes speedup jumper for field testing | Optional random start timer to prevent simultaneous multi-unit defrost | 24V control circuit compatible
  • OEM vs Generic: This is a genuine Carrier factory-authorized board manufactured to exact OEM specifications. Aftermarket defrost boards may lack Quiet Shift Technology and precise sensor calibration, resulting in noisy defrost transitions, premature coil wear, and shortened system life.
  • Install Difficulty: 3/5 — Requires disconnecting 24V low-voltage wiring harness and outdoor unit power. Tools needed: nut driver set, needle-nose pliers, multimeter, and phone or camera to photograph wiring positions before removal. Verify jumper settings on the new board match your system's defrost interval requirements before reinstalling the panel.
  • Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered for the Carrier PH4GPAA36000AA heat pump and also cross-compatible with select Bryant and Payne heat pump models sharing the HK32EA003 / HK32EA008 board specification. Always verify your unit's existing board part number against the data plate before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy for peace of mind.

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 PH4GPAA36000AA?
Yes. This is the factory-specified OEM control board for the Carrier PH4GPAA36000AA. 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 PH4GPAA36000AA?
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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