What are the specs for this Control Board?

The correct replacement for ICP model RGS120HDAB0AAA — 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 RGS120HDAB0AAA — OEM Replacement | Ships Today.

ICP

ICP Furnace Control Board Kit for RGS120HDAB0AAA — OEM Replacement | Ships Today

Name: ICP Furnace Control Board Kit for RGS120HDAB0AAA — OEM Replacement | 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 #1183618) is the brain of your ICP / Tempstar / Heil RGS120HDAB0AAA furnace. It sequences ignition, monitors safety switches and flame, and controls the inducer, igniter, gas valve, and blower. A failed board causes erratic behavior — no ignition, blower that won't shut off, or a furnace that won't respond to the thermostat at all. This kit ships as a direct-fit assembly to get the system back online.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP (Tempstar / Heil)
Function	Ignition sequencing, blower & safety control
Includes	Control board + mounting kit

Compatibility

Direct OEM replacement for the ICP Tempstar Heil RGS120HDAB0AAA furnace. Confirm your existing board's part number and connector layout before ordering.

Installation Guide

Safety First — Disconnect power at the furnace switch/breaker and verify zero voltage with a multimeter.
Access — Remove the control-compartment service panel.
Document — Photograph every harness connection and wire color before disconnecting.
Remove — Unplug each connector, remove the mounting screws, and lift out the old board.
Install — Mount the new board and reconnect every harness to the matching terminal per your photos.
Test — Restore power and run a full heat cycle; watch the board's diagnostic LED for normal operation.

Signs You Need a Replacement

Furnace unresponsive to thermostat calls
Blower runs continuously or won't start
Diagnostic LED flashing a hard-fault code
Intermittent ignition or random shutdowns

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 RGS120HDAB0AAA — OEM Replacement | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS120HDAB0AAA — 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 RGS120HDAB0AAA — 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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