What are the specs for this Control Board?

The correct replacement for ICP model RGS120HECA0AAA — OEM Replacement | 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 RGS120HECA0AAA — OEM Replacement | Ships Today.

ICP

ICP Furnace Control Board Kit for RGS120HECA0AAA — OEM Replacement | Ships Today

Name: ICP Furnace Control Board Kit for RGS120HECA0AAA — OEM Replacement | Ships Today
Brand: ICP
SKU: 1183618
Price: 246.94 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM control board kit (part 1183618) is the integrated furnace control (IFC) that orchestrates the entire heating sequence in your ICP / Tempstar / Heil RGS120HECA0AAA furnace. It manages inducer startup, pressure-switch proving, igniter timing, gas valve actuation, blower timing, and built-in safety interlocks. The board also runs self-diagnostics and reports faults through its LED flash codes. When a control board fails, you can see no response to a heat call, dropped blower or inducer operation, erratic cycling, or repeated lockouts that no single component swap will fix. Supplied as a complete kit for a clean replacement.

Specifications

Spec	Value
Part Number	1183618
Description	Kit, Control Board
Type	Integrated Furnace Control (IFC)
Brand	ICP (Tempstar / Heil)
Functions	Ignition, blower, inducer, safety control
Diagnostics	LED fault flash codes
Fitment	RGS120HECA0AAA

Compatibility

Direct-fit OEM replacement control board for the ICP Tempstar Heil RGS120HECA0AAA furnace and equivalent ICP-family units calling out kit 1183618. Match the board layout, connector positions, and part number against your existing control before installing.

Installation Guide

Safety First — Disconnect electrical power and verify zero voltage with a multimeter.
Access — Remove the control/blower-compartment service panel.
Document — Photograph every harness plug and terminal on the old board before unplugging anything.
Remove — Disconnect each connector, release the standoffs or screws, and lift out the failed board.
Install — Mount the new 1183618 board, transfer each connector to its identical position per your photos, and confirm every plug is fully seated.
Test — Restore power, run a full heat call, and verify ignition, blower, and inducer sequencing with no fault codes.

Signs You Need a Replacement

No response to a thermostat heat call
Blower or inducer fails to start or runs erratically
Repeated lockouts after replacing igniter or sensors
Visible scorching, burnt relays, or corroded traces on the 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 Kit fo...

$246.94

Frequently Asked Questions

Does this Control Board fit my ICP RGS120HECA0AAA — OEM Replacement | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS120HECA0AAA — OEM Replacement | 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 RGS120HECA0AAA — OEM Replacement | 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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