What are the specs for this Control Board?

The correct replacement for ICP model RGS243LTEA0AAAA — Kit #1183618 | 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 RGS243LTEA0AAAA — Kit #1183618 | Ships Today.

ICP

ICP Furnace Control Board for RGS243LTEA0AAAA — Kit #1183618 | Ships Today

Name: ICP Furnace Control Board for RGS243LTEA0AAAA — Kit #1183618 | Ships Today
Brand: ICP
SKU: 1183618
Price: 285.94 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM control board kit (part #1183618) is the integrated furnace control (IFC) that manages ignition sequencing, blower timing, safety lockouts, and diagnostics for your ICP Tempstar Heil RGS243LTEA0AAAA gas furnace. It reads the thermostat call, energizes the inducer, igniter, and gas valve in the correct order, monitors flame sense and limit switches, and controls heat and fan timings. A failed board is a frequent cause of a completely dead furnace, intermittent operation, or repeated lockouts. Common failure symptoms include no response to the thermostat, a flashing fault LED, the blower running constantly or not at all, and burned or corroded relays on the board.

Specifications

Spec	Value
Part Number	1183618
Description	Kit, Control Board
Type	Integrated Furnace Control Board
Brand	ICP (Tempstar / Heil)
Application	Gas Furnace Control
Fit	OEM Direct Replacement

Compatibility

Factory-correct replacement for the ICP Tempstar Heil RGS243LTEA0AAAA gas furnace and related ICP-family models using the same control kit. The kit form includes the mounting hardware and instructions needed for a direct swap. Confirm OEM part number 1183618 against your existing board before ordering.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker. Verify zero voltage with a multimeter.
Access — Remove the furnace control/blower compartment service panel.
Document — Photograph every wire and connector position on the old board before disconnecting.
Remove — Label and disconnect the harnesses, remove the board mounting screws, and lift out the old control.
Install — Mount the new board and reconnect every wire exactly per your photo and the kit instructions.
Test — Restore power, run a full heat cycle, and confirm correct ignition, blower, and diagnostic operation.

Signs You Need a Replacement

Furnace is completely unresponsive to the thermostat
Flashing diagnostic fault code or no LED at all
Blower or inducer runs continuously or fails to start
Visible burning, corrosion, or failed 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 for RG...

$285.94

Frequently Asked Questions

Does this Control Board fit my ICP RGS243LTEA0AAAA — Kit #1183618 | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS243LTEA0AAAA — Kit #1183618 | 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 RGS243LTEA0AAAA — Kit #1183618 | 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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