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OEM Carrier DSI Control Board LH33WP002 for PY3PEA048115AA
OEM Carrier DSI Control Board LH33WP002 for PY3PEA048115AA
OEM Carrier DSI Control Board LH33WP002 for PY3PEA048115AA
OEM Carrier DSI Control Board LH33WP002 for PY3PEA048115AA
Carrier

OEM Carrier DSI Control Board LH33WP002 for PY3PEA048115AA

SKU: CARRIE-PY3PEA048115AA-CONTROL_BOARD-LH33WP002 Brand: Carrier
✓ Guaranteed to fit PY3PEA048115AA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY3PEA048115AA

This is the genuine OEM Carrier Direct Spark Ignition (DSI) Control Board (part number LH33WP002), the factory-specified replacement for the Carrier PY3PEA048115AA packaged gas/electric unit. The DSI control board serves as the brain of the heating system — it sequences the inducer motor, fires the spark igniter, monitors the flame sensor signal, controls the gas valve, and manages blower timing. When this board fails, you'll typically see a hard lockout with no ignition attempt, intermittent no-heat calls, or the unit cycling through a trial-for-ignition and then locking out without establishing flame.

  • Part Specs: Direct Spark Ignition (DSI) microprocessor-based control board | OEM part number LH33WP002 (supersedes LH33WP002A) | Factory-matched for Carrier PY-series packaged units | Weight: 0.66 lbs
  • OEM vs Generic: This is a genuine Carrier OEM board — not an aftermarket substitute. OEM boards carry exact firmware logic, terminal layout, and timing sequences engineered for your unit. Aftermarket boards can introduce nuisance lockouts, incorrect blower delays, and voided equipment warranties.
  • Install Difficulty: 3/5 — Requires disconnecting 24V and line-voltage harnesses and documenting all connector positions before removal. Recommended tools: #2 Phillips screwdriver, 1/4″ and 5/16″ nut drivers, smartphone for wiring photos, multimeter for pre/post-install voltage verification. Always shut off the gas supply and disconnect power at the disconnect box before servicing.
  • Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Designed for the Carrier PY3PEA048115AA packaged gas/electric unit. Also used across a broad range of Carrier, Bryant, and Payne models in the 48, 574, 580, 581, 582, 583, 588, 589, and PY series — verify your model and data plate part number before ordering. Our parts specialists are available to confirm fitment at no charge.

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 PY3PEA048115AA?
Yes. This is the factory-specified OEM control board for the Carrier PY3PEA048115AA. 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 PY3PEA048115AA?
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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