What are the specs for this Control Board?

The correct replacement for ICP model RGS101LTCA0AAA — OEM 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 RGS101LTCA0AAA — OEM 1183618 | Ships Today.

ICP

ICP Furnace Control Board Kit for RGS101LTCA0AAA — OEM 1183618 | Ships Today

Name: ICP Furnace Control Board Kit for RGS101LTCA0AAA — OEM 1183618 | Ships Today
Brand: ICP
SKU: 1183618
Price: 220.94 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This genuine OEM furnace control board kit (part number 1183618) is the integrated circuit board that manages the entire heating sequence on the ICP / Tempstar / Heil RGS101LTCA0AAA gas furnace. It governs the ignition sequence, blower and inducer timing, safety interlocks, and flame sensing, and it communicates fault codes through its diagnostic LED. When the board fails, the furnace may fail to ignite, short-cycle, run the blower continuously, or display error codes. Because the board ties together the igniter, gas valve, pressure switch, limit switches, and motors, a faulty board can mimic many other component failures — replacing it with the correct OEM kit restores reliable, code-compliant operation and proper safety monitoring.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP / Tempstar / Heil
Function	Ignition, Blower & Safety Control
Fits Model	RGS101LTCA0AAA
Fitment	OEM Direct Replacement

Compatibility

Direct-fit replacement kit for the ICP Tempstar Heil RGS101LTCA0AAA gas furnace. This control board is shared across numerous ICP-built RGS-series furnaces and related Tempstar, Heil, Comfortmaker, and Arcoaire models. Match the part number and connector layout to your existing board before installing.

Installation Guide

Safety First — Disconnect power to the furnace at the switch and breaker. Verify zero voltage with a multimeter.
Access — Remove the blower compartment service panel to expose the control board.
Document — Photograph every wiring harness and connector position before unplugging anything.
Remove — Unplug each harness, release the board's mounting standoffs or screws, and lift out the old board.
Install — Mount the new 1183618 board, then reconnect each harness to its matching connector exactly per your photos.
Test — Restore power, run a full heat cycle, and confirm correct ignition, blower timing, and a steady diagnostic LED.

Signs You Need a Replacement

Furnace will not start or fails to complete the ignition sequence
Blower or inducer runs constantly or with wrong timing
Diagnostic LED shows a board or hardware fault code
Intermittent operation that does not trace to igniter, valve, or switches

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...

$220.94

Frequently Asked Questions

Does this Control Board fit my ICP RGS101LTCA0AAA — OEM 1183618 | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS101LTCA0AAA — OEM 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 RGS101LTCA0AAA — OEM 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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