What are the specs for this Control Board?

The correct replacement for ICP model RGS303LTEA0AAAA — Integrated 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 RGS303LTEA0AAAA — Integrated Ignition Control | Ships Today.

ICP

ICP Furnace Control Board Kit for RGS303LTEA0AAAA — Integrated Ignition Control | Ships Today

Name: ICP Furnace Control Board Kit for RGS303LTEA0AAAA — Integrated Ignition Control | Ships Today
Brand: ICP
SKU: 1183618
Price: 246.94 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM control board kit (part #1183618, "Kit Control Board") is the integrated furnace control for the ICP/Tempstar/Heil RGS303LTEA0AAAA packaged gas/electric unit. The board is the brain of the heating system — it manages the ignition sequence, sequences the inducer and blower, monitors safety switches and flame sensing, and protects the unit by locking out on fault conditions. When a control board fails, the symptoms range from intermittent no-heat and erratic blower behavior to a completely dead unit or repeated lockouts. This kit ships with the board and the necessary mounting/wiring hardware for a clean OEM replacement.

Specifications

Spec	Value
OEM Part Number	1183618
Description	Kit, Control Board
Type	Integrated Furnace Ignition Control
Brand	ICP / Tempstar / Heil
Application	Gas/Electric Packaged Unit

Compatibility

Direct OEM replacement kit for the ICP RGS303LTEA0AAAA model and applicable across ICP-family units (Tempstar, Heil, Comfortmaker) that specify this control board kit. Confirm the board's connector layout and part number against your original before installing.

Installation Guide

Safety First — Disconnect power and shut off the gas; verify zero voltage with a multimeter.
Access — Remove the service panel to expose the control board.
Document — Photograph every wire harness and terminal connection before disconnecting — this is the most important step on a board swap.
Remove — Unplug each harness, remove the mounting screws/standoffs, and lift out the old board.
Install — Mount the new board from the kit and reconnect every harness exactly per your photos.
Test — Restore gas and power, run a full heating cycle, and confirm proper ignition, blower, and fault-free operation.

Signs You Need a Replacement

Furnace is completely unresponsive on a call for heat
Repeated lockouts or error codes flashed by the diagnostic LED
Inducer or blower fails to start or runs erratically
Visible scorching, burned relays, or corroded traces 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...

$246.94

Frequently Asked Questions

Does this Control Board fit my ICP RGS303LTEA0AAAA — Integrated Ignition Control | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS303LTEA0AAAA — Integrated 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 RGS303LTEA0AAAA — Integrated 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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