What are the specs for this Control Board?

The correct replacement for ICP model RGS091LTCA0AAA — 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 RGS091LTCA0AAA — OEM 1183618 | Ships Today.

ICP

ICP Furnace Control Board Kit for RGS091LTCA0AAA — OEM 1183618 | Ships Today

Name: ICP Furnace Control Board Kit for RGS091LTCA0AAA — OEM 1183618 | Ships Today
Brand: ICP
SKU: 1183618
Price: 245.70 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This genuine OEM furnace control board kit (part number 1183618) is the brain of the ICP / Heil / Tempstar RGS091LTCA0AAA gas furnace. The integrated control board manages the entire heating sequence — it reads the thermostat call, runs the inducer and pressure switch check, energizes the hot surface igniter, opens the gas valve, monitors flame via the sensor, and times blower on/off. It also handles safety lockouts and flashes diagnostic fault codes through its onboard LED. When the board fails, the furnace may be completely dead, stuck in lockout, short-cycling, or running the blower continuously.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP / Heil / Tempstar
Function	Ignition sequencing, blower timing, safety, diagnostics
Diagnostics	Onboard LED fault codes
Fitment	OEM direct replacement kit

Compatibility

Built for the ICP-family RGS091LTCA0AAA gas furnace and other units specifying control board kit 1183618. Confirm the board part number and connector layout against your existing board before ordering.

Installation Guide

Safety First — Turn off gas and disconnect electrical power. Verify zero voltage with a multimeter.
Access — Remove the furnace control/blower access panel.
Document — Photograph every wire harness and plug location on the old board before disconnecting.
Remove — Unplug each connector, remove the mounting screws/standoffs, and lift out the old board.
Install — Mount the new board, transfer connectors one at a time exactly per your photos, and set any jumpers/dip switches to match.
Test — Restore gas and power, run a full heat cycle, and confirm the diagnostic LED shows normal operation.

Signs You Need a Replacement

Furnace is completely unresponsive to thermostat calls
Repeated hard lockouts or rapid short-cycling
Blower runs constantly or never starts
Diagnostic LED shows a control/internal fault or no light at all

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...

$245.70

Frequently Asked Questions

Does this Control Board fit my ICP RGS091LTCA0AAA — OEM 1183618 | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS091LTCA0AAA — 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 RGS091LTCA0AAA — 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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