What are the specs for this Control Board?

The correct replacement for ICP model RGS300SEEA0AAAA — OEM Furnace Board 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 RGS300SEEA0AAAA — OEM Furnace Board 1183618 | Ships Today.

ICP

ICP Control Board Kit for RGS300SEEA0AAAA — OEM Furnace Board 1183618 | Ships Today

Name: ICP Control Board Kit for RGS300SEEA0AAAA — OEM Furnace Board 1183618 | Ships Today
Brand: ICP
SKU: 1183618
Price: 245.70 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This is the genuine OEM control board kit, ICP part number 1183618, specified for the ICP/Tempstar/Heil RGS300SEEA0AAAA gas furnace. The integrated furnace control board is the brain of the system — it sequences the ignition cycle, runs the inducer and blower timing, monitors safety limits and the flame signal, and communicates with the thermostat. Supplied as a complete kit, it includes the board and the hardware needed for a clean swap. When a control board fails, the furnace may be completely dead, stuck in lockout, blowing fault codes, or running blower and ignition out of sequence. A correct OEM board restores proper safety sequencing and timing.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP / Tempstar / Heil
Includes	Control Board + Mounting Hardware
Application	Gas Furnace

Compatibility

Direct OEM replacement for the ICP/Tempstar/Heil RGS300SEEA0AAAA gas furnace, and a fit for related ICP-family furnaces that call out the 1183618 control board kit. Verify your existing board part number and connector layout before ordering.

Installation Guide

Safety First — Disconnect power at the switch and breaker, then verify zero voltage with a multimeter.
Access — Remove the control/blower compartment service panel.
Document — Photograph every harness connector and wire location before disconnecting — this is critical on a control board.
Remove — Unplug each connector, then unscrew or unclip the old board from its standoffs.
Install — Mount the new board on the kit hardware and reconnect every connector to the matching port per your photo.
Test — Restore power and confirm a normal ignition sequence: inducer, igniter, gas valve, flame proof, then blower, with no fault codes.

Signs You Need a Replacement

Furnace completely unresponsive with power confirmed.
Repeated lockouts or blinking fault codes at the board LED.
Blower, inducer, or ignition firing out of sequence or not at all.
Visible scorching, burnt relays, or corrosion on the board.

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day hassle-free 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 RGS300...

$245.70

Frequently Asked Questions

Does this Control Board fit my ICP RGS300SEEA0AAAA — OEM Furnace Board 1183618 | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS300SEEA0AAAA — OEM Furnace Board 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 RGS300SEEA0AAAA — OEM Furnace Board 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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