What are the specs for this Control Board?

The correct replacement for Goodman model GMTH045-3B — B1809913S is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Goodman equipment which lists the model number GMTH045-3B — B1809913S.

Is this control board compatible with Bryant or Payne systems too?

Many Goodman parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

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Goodman

OEM Goodman Integrated Furnace Control Board for GMTH045-3B — B1809913S

Name: OEM Goodman Integrated Furnace Control Board for GMTH045-3B — B1809913S
Brand: Goodman
SKU: GOODMAN-12532
Price: 184.95 USD
Availability: InStock

SKU: GOODMAN-12532 Brand: Goodman

$184.95 $239.95

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The Goodman B1809913S Integrated Furnace Control Board is a genuine OEM ignition and sequencing control shipped with the matching 9-pin wiring harness, built for the GMTH045-3B gas furnace and compatible Goodman/Amana models. This board is the brain of the furnace: it manages the ignition sequence, times the inducer and blower, monitors safety limits and flame sense, and drives the gas valve. Symptoms of a failed board include no ignition, blower running constantly, blinking diagnostic LEDs, or intermittent no-heat lockouts.

Specifications

Part Number: B1809913S
Type: Integrated furnace control (IFC) board
Harness: Includes 9-pin connector harness
Functions: Ignition timing, inducer/blower control, flame sensing, safety interlock monitoring, on-board diagnostics
Fits: Goodman GMTH045-3B and related furnaces
Brand: Goodman (OEM)

OEM vs. Generic

Furnace control boards are model-specific — connector pinout, firmware timing, and relay ratings must match your equipment exactly. There is no reliable universal substitute for this board. The OEM B1809913S with its included 9-pin harness guarantees correct sequencing and preserves your furnace's safety logic and diagnostic codes.

Installation Difficulty

Moderate (3/5). Photograph every connection before removing the old board, transfer plugs one at a time, and confirm the flame-sense and limit circuits are correct. Cut power at the disconnect first. If you are not comfortable reading the furnace wiring diagram, use a licensed HVAC technician.

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

OEM Goodman Integrated Furnace C...

$184.95

Frequently Asked Questions

Does this Control Board fit my Goodman GMTH045-3B — B1809913S?

Yes. This is the factory-specified OEM control board for the Goodman GMTH045-3B — B1809913S. 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 Goodman GMTH045-3B — B1809913S?

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 Goodman 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 Goodman 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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