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OEM Carrier Main Control Board 17122000A20389 for DHMSHAQ09XA101
Carrier

OEM Carrier Main Control Board 17122000A20389 for DHMSHAQ09XA101

SKU: CARRIE-DHMSHAQ09XA101-CONTROL_BOARD-17122000A20389 Brand: Carrier

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Texas CMBL #19328542014
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OEM Carrier Main Control Board 17122000A20389 for Model DHMSHAQ09XA101

This is the factory OEM main control board (part number 17122000A20389) for the Carrier DHMSHAQ09XA101 mini-split system. The main control board is the central command module of your unit — it interprets thermostat and remote signals, sequences compressor and fan operation, monitors safety inputs, and manages inverter communication. When it fails, symptoms range from a completely unresponsive system and error codes on the display, to erratic cycling, loss of one or more operating modes (heat, cool, fan), or failure to power on at all. Replacing the control board with the exact OEM part ensures all factory logic, timing, and safety thresholds are preserved.

  • Specs: OEM Part No. 17122000A20389 | Factory-programmed main control board | Designed for Carrier DHMSHAQ09XA101 mini-split | Exact-fit PCB with all original connectors and mounting points
  • OEM vs Generic: OEM control boards are programmed with the exact firmware and component tolerances required by your Carrier system. Aftermarket boards often lack model-specific firmware calibration, which can trigger false fault codes, void remaining warranties, and compromise inverter communication — leading to premature compressor failure.
  • Install Difficulty: 3/5 — Requires disconnecting and reconnecting multiple low-voltage harnesses and ribbon cables. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, and a phone or camera to photograph all connector positions before removal. Always disconnect power at the breaker and wait 5 minutes to allow capacitors to discharge before handling the board.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship the same business day from our stocked warehouse.

Compatibility: This control board is factory-specified for the Carrier DHMSHAQ09XA101 mini-split system. Always verify the OEM part number 17122000A20389 against your existing board's label before ordering to confirm fitment. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — contact us before placing your 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 DHMSHAQ09XA101?
Yes. This is the factory-specified OEM control board for the Carrier DHMSHAQ09XA101. 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 DHMSHAQ09XA101?
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
HVAC Parts Specialist — Online