What are the specs for this Control Board?

The correct replacement for Goodman model GUN100-4B — B1809904S 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 GUN100-4B — B1809904S.

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.

IMAGE COMING SOON

Goodman

OEM Goodman Integrated Furnace Control Board for GUN100-4B — B1809904S

Name: OEM Goodman Integrated Furnace Control Board for GUN100-4B — B1809904S
Brand: Goodman
SKU: GOODMAN-13160
Price: 191.95 USD
Availability: InStock

SKU: GOODMAN-13160 Brand: Goodman

$191.95 $249.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman B1809904S Integrated Furnace Control Board is the genuine OEM replacement control module for the Goodman GUN100-4B gas furnace. This board is the brain of the furnace — it manages the ignition sequence, blower timing, safety-circuit monitoring, and diagnostic fault codes. If your furnace won't ignite, short-cycles, throws blinking LED error codes, or the blower runs continuously, a failed control board is a common cause.

Specifications

OEM Part Number: B1809904S
Compatible Model: Goodman GUN100-4B (verify against your existing board)
Function: Integrated ignition, blower, and safety control
Input: 24 VAC control / 120 VAC line
Onboard diagnostic LED fault codes
Equipment: Gas furnace

OEM vs. Generic

This is a genuine Goodman OEM board — it matches the original firmware, relay layout, and connector pinout exactly, so ignition timing and safety lockouts behave as the factory intended. Aftermarket universal boards may require rewiring, jumper reconfiguration, and can void manufacturer coverage. For a control board, OEM is strongly recommended to avoid nuisance faults.

Installation Difficulty

Moderate (3/5). Replacement involves photographing and transferring wiring harnesses one connector at a time. Always cut power at the breaker before servicing. If you are not comfortable working around 120 VAC and gas-valve wiring, hire a licensed HVAC technician.

Fitment note: confirm the exact part number printed on your existing board before ordering.

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...

$191.95

Frequently Asked Questions

Does this Control Board fit my Goodman GUN100-4B — B1809904S?

Yes. This is the factory-specified OEM control board for the Goodman GUN100-4B — B1809904S. 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 GUN100-4B — B1809904S?

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.

Menu