What are the specs for this Control Board?

The correct replacement for ICP model RGS240SFAA0AAAA — OEM Kit 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 RGS240SFAA0AAAA — OEM Kit 1183618 | Ships Today.

ICP

ICP Furnace Control Board for RGS240SFAA0AAAA — OEM Kit 1183618 | Ships Today

Name: ICP Furnace Control Board for RGS240SFAA0AAAA — OEM Kit 1183618 | Ships Today
Brand: ICP
SKU: 1183618
Price: 218.40 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This is the OEM integrated furnace control board kit (part number 1183618) for the ICP / Tempstar / Heil RGS240SFAA0AAAA gas furnace. The control board orchestrates the entire heating cycle — it powers the inducer, runs the ignition sequence, proves flame and pressure, sequences the blower, and enforces the safety limits and lockouts. It also drives the diagnostic LED that flashes fault codes for troubleshooting. When this board fails, the furnace usually won't respond to a heat call, hangs in one stage of the sequence, or short-cycles. Shipped as a complete kit with the connectors and hardware needed for a clean swap.

Specifications

Spec	Value
OEM Part Number	1183618 (Kit Control Board)
Type	Integrated Furnace Control Board
Brand	ICP (Tempstar / Heil)
Control Voltage	24V
Fits Model	RGS240SFAA0AAAA
Fitment	OEM direct replacement

Compatibility

Engineered as a direct OEM replacement for the ICP / Tempstar / Heil RGS240SFAA0AAAA gas furnace. ICP manufactures this platform under several labels (Heil, Tempstar, Comfortmaker, Arcoaire), so the 1183618 kit also services the equivalent furnaces that share this control assembly. Confirm the part number on your current board before ordering.

Installation Guide

Safety First — Shut off gas and disconnect electrical power at the breaker. Verify zero voltage at the board terminals with a multimeter.
Access — Remove the furnace blower-compartment service panel.
Document — Photograph every wire and connector on the existing board before disconnecting.
Remove — Unplug each harness connector, remove the mounting screws, and lift out the failed control board.
Install — Mount the new 1183618 board and reconnect every harness exactly as photographed.
Test — Restore gas and power, run a heat call, and confirm the inducer, ignition, flame, and blower sequence completes with no fault LED codes.

Signs You Need a Replacement

Furnace does not start on a thermostat call for heat.
Diagnostic LED flashes a hard-lockout or control fault code.
Inducer or blower runs continuously or never starts.
Visible burns, corrosion, or cracked traces on the existing 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 for RG...

$218.40

Frequently Asked Questions

Does this Control Board fit my ICP RGS240SFAA0AAAA — OEM Kit 1183618 | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS240SFAA0AAAA — OEM Kit 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 RGS240SFAA0AAAA — OEM Kit 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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