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OEM Carrier Integrated Control Board for Unit PY1RPA036074ABWB
Carrier

OEM Carrier Integrated Control Board for Unit PY1RPA036074ABWB

SKU: CARRIE-PY1RPA036074ABWB-CONTROL_BOARD-LH33WP003 Brand: Carrier
Guaranteed to fit PY1RPA036074ABWB — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Integrated Control Board for Unit PY1RPA036074ABWB

The integrated control board is the brain of your Carrier PY1RPA036074ABWB packaged unit, sequencing the blower, inducer, compressor contactor, and safety circuits every time a call for heating or cooling arrives from the thermostat. When it fails the symptoms are rarely subtle: the system may go completely dead, blow only cold or only warm air, short-cycle on and off, ignore the thermostat entirely, or trip the breaker. You may also notice the indoor blower running nonstop or relays clicking rapidly while the unit never actually starts. This is a genuine Carrier OEM board built to the original relay layout and firmware logic for this chassis. It carries the correct number of onboard relays for the blower, inducer, and compressor circuits, matches the factory low-voltage terminal assignments (R, W, Y, G, C), and uses the same fault-code LED so diagnostics read exactly as the service manual describes. The control side runs on 24VAC while line-voltage switching is handled by the onboard relays. OEM matters here more than on almost any other part. Generic or 'universal' boards rarely replicate Carrier's exact relay timing, anti-short-cycle delays, and fault logic, which can leave safety lockouts inoperative or cause nuisance cycling that shortens compressor life. A board with under-rated relays can weld its contacts closed and damage the very components it controls. Install difficulty: 4 of 5 — best left to a confident DIYer or technician. Tools: 1/4" nut driver, Phillips screwdriver, multimeter, and a phone photo of the existing wiring. #1 safety warning: kill the breaker at the disconnect before touching the board — line voltage is present even with the thermostat off. Ships same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PY1RPA036074ABWB. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

OEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.

Shipping & Returns

Same-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.

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 Unit PY1RPA036074ABWB?
Yes. This is the factory-specified OEM control board for the Carrier Unit PY1RPA036074ABWB. 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 Unit PY1RPA036074ABWB?
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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