What are the specs for this Control Board?

The correct replacement for ICP model RGS120HEAA0AAA | 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 RGS120HEAA0AAA | Ships Today.

ICP

ICP Integrated Furnace Control Board Kit for RGS120HEAA0AAA | Ships Today

Name: ICP Integrated Furnace Control Board Kit for RGS120HEAA0AAA | Ships Today
Brand: ICP
SKU: 1183618
Price: 245.70 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM control board kit (part number 1183618) is the integrated furnace control (IFC) — the brain of your ICP/Tempstar/Heil RGS120HEAA0AAA gas furnace. It sequences ignition, manages the igniter, gas valve, inducer, and blower, monitors safety switches and the flame signal, and runs onboard diagnostics. Boards fail from voltage spikes, overheating relays, corroded traces, and aged capacitors. A failing board causes no heat, intermittent operation, blower or inducer problems, blinking diagnostic LED fault codes, or a furnace that locks out. The factory kit includes the board and required hardware for a clean, OEM-correct replacement.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP (Tempstar / Heil / Comfortmaker)
Control Voltage	24 VAC
Features	Ignition control, blower/inducer timing, onboard diagnostic LED

Compatibility

Direct OEM fit for the ICP/Tempstar/Heil RGS120HEAA0AAA furnace and ICP-family models that specify control board kit 1183618.

Installation Guide

Safety First — Disconnect electrical power and shut off gas; verify zero voltage with a multimeter.
Access — Remove the furnace control/blower compartment panel.
Document — Photograph every plug and wire location; the board has many similar connectors.
Remove — Unplug each harness, remove the mounting screws/standoffs, and lift out the old board.
Install — Mount the new board on the supplied hardware and reconnect every connector exactly per your photo.
Test — Restore power and gas, run a full heat cycle, and confirm the diagnostic LED shows normal operation with no fault codes.

Signs You Need a Replacement

No heat or intermittent furnace operation
Blinking LED fault code or no LED at all
Blower or inducer won't run on a call
Burnt smell, scorched relays, or visible board damage

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 Integrated Furnace Control B...

$245.70

Frequently Asked Questions

Does this Control Board fit my ICP RGS120HEAA0AAA | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS120HEAA0AAA | 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 RGS120HEAA0AAA | 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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