What are the specs for this Control Board?

The correct replacement for ICP model RGS120HTBB0AAA — OEM 1183618 Furnace Control | 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 RGS120HTBB0AAA — OEM 1183618 Furnace Control | Ships Today.

ICP

ICP Control Board Kit for RGS120HTBB0AAA — OEM 1183618 Furnace Control | Ships Today

Name: ICP Control Board Kit for RGS120HTBB0AAA — OEM 1183618 Furnace Control | Ships Today
Brand: ICP
SKU: 1183618
Price: 245.70 USD
Availability: InStock

SKU: 1183618 Brand: ICP

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This is the OEM integrated furnace control board kit (part number 1183618) for the ICP / Tempstar / Heil RGS120HTBB0AAA gas furnace. The control board is the brain of the furnace: it manages the ignition sequence, monitors safety limits and flame sense, sequences the inducer and blower motors, and coordinates the 24-volt thermostat call for heat. When this board fails, the furnace will typically lock out, fail to ignite, short-cycle, or run the blower continuously. Because it ships as a complete kit, it includes the board and the mounting hardware needed to drop it into the existing control box.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated furnace control board kit
Brand	ICP (Tempstar / Heil)
Control Voltage	24V
Fits Model	RGS120HTBB0AAA

Compatibility

Designed as a direct OEM replacement for the ICP Tempstar Heil RGS120HTBB0AAA furnace. ICP-family equipment shares boards across several Tempstar, Heil, and Comfortmaker lines — confirm the printed part number 1183618 on your existing board before ordering.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
Access — Remove the furnace control/blower compartment door.
Document — Photograph every wire and connector landing on the board before removing anything.
Remove — Unplug the molex harnesses and spade terminals, remove the mounting screws, and lift out the failed board.
Install — Mount the new board on the supplied standoffs and reconnect every harness to match your photo.
Test — Restore power and run a full heat cycle, confirming ignition, flame sense, and blower handoff.

Signs You Need a Replacement

Furnace locks out or shows ignition/control fault codes on the diagnostic LED.
No response to a thermostat call for heat even with power present.
Inducer or blower runs continuously or fails to start.
Visible scorching, corrosion, or cracked traces on the board.

Shipping & Returns

Ships same day on orders placed 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 Control Board Kit for RGS120...

$245.70

Frequently Asked Questions

Does this Control Board fit my ICP RGS120HTBB0AAA — OEM 1183618 Furnace Control | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS120HTBB0AAA — OEM 1183618 Furnace Control | 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 RGS120HTBB0AAA — OEM 1183618 Furnace Control | 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.

Menu