What are the specs for this Control Board?

The correct replacement for ICP model RGS243LTFA0AAAA – Furnace Ignition 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 RGS243LTFA0AAAA – Furnace Ignition Control | Ships Today.

ICP

ICP Control Board Kit for RGS243LTFA0AAAA – Furnace Ignition Control | Ships Today

Name: ICP Control Board Kit for RGS243LTFA0AAAA – Furnace Ignition Control | Ships Today
Brand: ICP
SKU: 1183618
Price: 220.94 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This genuine OEM control board kit (OEM part 1183618) is the integrated furnace control (IFC) for the ICP/Tempstar/Heil RGS243LTFA0AAAA gas furnace. The board is the brain of the furnace: it manages the ignition sequence, sequences the inducer and blower motors, monitors the limit and pressure switches, drives the gas valve, and runs continuous flame-sense safety and diagnostic logic. Voltage spikes, flame-sensor feedback faults, cracked solder joints, and burned relays all cause board failure. Symptoms range from a completely dead furnace to short cycling, no inducer or blower, or flashing diagnostic LED fault codes. This kit ships with the replacement board and mounting hardware so you can restore full, safe operation in a single service call.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP (Tempstar / Heil / Comfortmaker)
Function	Ignition, Blower & Safety Control
Diagnostics	LED Fault Code Indicator
Fit	OEM Direct Replacement Kit

Compatibility

Designed for the ICP RGS243LTFA0AAAA and shared across compatible ICP-family RGS-series gas furnaces sold under Tempstar, Heil, Comfortmaker, and Arcoaire. Match the board part number, connector layout, and harness plugs to your existing control before installing.

Installation Guide

Safety First – Disconnect furnace power and shut off gas; verify zero voltage with a multimeter.
Access – Remove the furnace control/blower access panel.
Document – Photograph every harness plug and terminal location before disconnecting.
Remove – Unplug each connector, remove the mounting screws, and lift out the old board.
Install – Mount the new board, then reseat every connector firmly in its matching position per your photo.
Test – Restore gas and power, call for heat, and confirm a full ignition cycle with no fault codes.

Signs You Need a Replacement

Furnace completely unresponsive to a heat call
Inducer or blower fails to start or runs continuously
Flashing diagnostic LED fault code at the board
Visible burn marks, corrosion, or scorched 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 Control Board Kit for RGS243...

$220.94

Frequently Asked Questions

Does this Control Board fit my ICP RGS243LTFA0AAAA – Furnace Ignition Control | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS243LTFA0AAAA – Furnace Ignition 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 RGS243LTFA0AAAA – Furnace Ignition 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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