What are the specs for this Control Board?

The correct replacement for ICP model RGS120SFAB0AAA - OEM Integrated Control | Ships Today 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 ICP equipment which lists the model number RGS120SFAB0AAA - OEM Integrated Control | Ships Today.

ICP

ICP Furnace Control Board Kit for RGS120SFAB0AAA - OEM Integrated Control | Ships Today

Name: ICP Furnace Control Board Kit for RGS120SFAB0AAA - OEM Integrated Control | Ships Today
Brand: ICP
SKU: 1183618
Price: 218.40 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM control board kit (Part No. 1183618) is the integrated furnace control (IFC) brain of the ICP / Tempstar / Heil RGS120SFAB0AAA gas furnace. It manages the entire heating sequence: it reads the thermostat call, energizes the inducer, monitors the pressure switch and limit safeties, fires the hot surface igniter and gas valve, times the blower on and off delays, and flashes diagnostic fault codes through its onboard LED. Because the board ties every major component together, a failed board can mimic almost any furnace problem - no ignition, no blower, short cycling, or a unit that is completely dead. The kit form includes the hardware needed for a clean swap. Before replacing the board, confirm with the LED fault code and component testing that the board itself, not a downstream part, is the failure.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP / Tempstar / Heil
Functions	Ignition, blower timing, safety sequencing, diagnostics
Diagnostics	Onboard LED fault codes
Fit	OEM Replacement

Compatibility

Engineered for the ICP / Tempstar / Heil RGS120SFAB0AAA gas furnace and other ICP-family units that use this integrated furnace control. Always match OEM part number 1183618 and compare connector layout to your existing board before installing.

Installation Guide

Safety First - Disconnect electrical power and shut off the gas, then verify zero voltage with a multimeter before touching the board.
Access - Remove the furnace control/blower compartment door to expose the control board.
Document - Photograph every connector, plug, and wire location on the old board before disconnecting anything.
Remove - Unplug all harnesses, remove the mounting screws, and lift out the old board.
Install - Mount the new board and reconnect each harness to its matching terminal per your photos.
Test - Restore gas and power, run a full heat cycle, and verify ignition, blower timing, and a normal LED status with no fault codes.

Signs You Need a Replacement

Furnace is completely dead with no LED status light
Inducer, igniter, or blower fails to energize despite good components
Persistent or nonsensical fault codes that don't match field testing
Visible burn marks, corrosion, or cracked traces/relays on the board

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.

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

ICP Furnace Control Board Kit fo...

$218.40

Frequently Asked Questions

Does this Control Board fit my ICP RGS120SFAB0AAA - OEM Integrated Control | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS120SFAB0AAA - OEM Integrated Control | Ships Today. 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 ICP RGS120SFAB0AAA - OEM Integrated Control | Ships Today?

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 ICP 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 ICP 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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