What are the specs for this Control Board?

The correct replacement for ICP model RGS120LFBB0AAA — OEM Replacement | 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 RGS120LFBB0AAA — OEM Replacement | Ships Today.

ICP

ICP Furnace Control Board Kit for RGS120LFBB0AAA — OEM Replacement | Ships Today

Name: ICP Furnace Control Board Kit for RGS120LFBB0AAA — OEM Replacement | Ships Today
Brand: ICP
SKU: 1183618
Price: 219.64 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM control board kit (part number 1183618) is the integrated furnace control (IFC) for the ICP/Tempstar/Heil RGS120LFBB0AAA gas furnace. The board is the brain of the furnace: it manages the ignition sequence, monitors the flame sensor and pressure/limit switches, sequences the inducer and blower motors, and runs onboard self-diagnostics with fault-code LEDs. A failed control board can cause a completely dead furnace, ignition that won't initiate, blower or inducer that won't run, or erratic short-cycling. The kit ships with the necessary mounting hardware and instructions for an OEM-correct replacement.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP (Tempstar / Heil)
Function	Ignition, blower & inducer control with diagnostics
Includes	Control board + mounting hardware

Compatibility

Direct OEM replacement for the ICP/Tempstar/Heil/Comfortmaker RGS120LFBB0AAA and related RGS-series furnaces. Confirm the board part number and connector layout match your existing unit before installing.

Installation Guide

Safety First — Disconnect power at the furnace switch/breaker and verify zero voltage with a multimeter.
Access — Remove the furnace control/blower panel.
Document — Photograph every wire harness and connector on the old board before disconnecting.
Remove — Unplug each labeled harness, remove the mounting screws, and lift out the old board.
Install — Mount the new board and reconnect each connector to its matching terminal per your photo.
Test — Restore power, run a full heat cycle, and verify the diagnostic LED shows normal operation.

Signs You Need a Replacement

Furnace is completely dead with no diagnostic LED
Ignition sequence never starts
Blower or inducer motor will not energize
Erratic short-cycling or persistent fault codes

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...

$219.64

Frequently Asked Questions

Does this Control Board fit my ICP RGS120LFBB0AAA — OEM Replacement | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS120LFBB0AAA — OEM Replacement | 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 RGS120LFBB0AAA — OEM Replacement | 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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