What are the specs for this Control Board?

The correct replacement for ICP model RGS243LEFA0AAAA — Furnace 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 RGS243LEFA0AAAA — Furnace Integrated Control | Ships Today.

ICP

ICP Control Board Kit for RGS243LEFA0AAAA — Furnace Integrated Control | Ships Today

Name: ICP Control Board Kit for RGS243LEFA0AAAA — Furnace Integrated Control | Ships Today
Brand: ICP
SKU: 1183618
Price: 214.50 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM Integrated Furnace Control Board Kit (part number 1183618) is the electronic brain of the ICP RGS243LEFA0AAAA gas furnace. It manages the entire heating sequence — igniter warm-up, gas valve timing, blower on/off delays, flame sensing, and built-in safety lockouts. When this board fails, the furnace typically stops responding to thermostat calls, flashes diagnostic LED fault codes, short-cycles, or fails to energize the igniter and blower. Replacing a failed control board restores reliable, safe furnace operation. This is a genuine OEM kit, not an aftermarket substitute, so connector pin-outs, relay ratings, and ignition timing match factory specifications exactly.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP / Heil / Tempstar / Comfortmaker
Control Voltage	24V
Function	Ignition, gas valve, blower & flame-sense control
Fitment	OEM replacement

Compatibility

Engineered as the direct OEM replacement control board for the ICP RGS243LEFA0AAAA gas furnace. This kit also services many closely related Heil, Tempstar, and Comfortmaker RGS-series furnaces that share the same control platform. Always confirm the printed part number on your existing board reads 1183618 before installing.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter and shut off the gas supply.
Access — Remove the furnace blower-compartment service panel to expose the control board.
Document — Photograph every wire and connector position before disconnecting anything.
Remove — Unplug the wiring harnesses, release the mounting screws/standoffs, and lift out the old board.
Install — Mount the new 1183618 board, then reconnect each harness exactly per your photos.
Test — Restore gas and power, run a heat cycle, and confirm igniter, gas valve, flame sense, and blower all sequence correctly with no fault codes.

Signs You Need a Replacement

Furnace does not respond to thermostat heat calls.
Diagnostic LED flashing fault codes or no LED at all.
Igniter or blower fails to energize during the heat sequence.
Furnace short-cycles or locks out after a few minutes.

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...

$214.50

Frequently Asked Questions

Does this Control Board fit my ICP RGS243LEFA0AAAA — Furnace Integrated Control | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS243LEFA0AAAA — Furnace 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 RGS243LEFA0AAAA — Furnace 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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