What are the specs for this Control Board?

The correct replacement for ICP model RGX036KEXA0AAA — OEM Module | 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 RGX036KEXA0AAA — OEM Module | Ships Today.

ICP

ICP Furnace Control Board Kit for RGX036KEXA0AAA — OEM Module | Ships Today

Name: ICP Furnace Control Board Kit for RGX036KEXA0AAA — OEM Module | Ships Today
Brand: ICP
SKU: 1183618
Price: 246.94 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This is a genuine OEM furnace control board kit (part number 1183618) for the ICP/Heil/Tempstar RGX036KEXA0AAA gas furnace. The control board — also called the integrated furnace control (IFC) — is the brain of the furnace. It manages the ignition sequence, sequences the inducer and blower motors, monitors the flame sensor and limit switches, controls the gas valve and igniter, and runs onboard diagnostics via an LED fault code. A failed board produces a furnace that won't start, ignites erratically, runs the blower continuously, or flashes diagnostic codes for components that test good. This kit ships with the OEM board and required mounting hardware so you can restore full, code-compliant furnace operation in a single repair.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP (Heil / Tempstar / Comfortmaker)
Function	Ignition, Blower & Inducer Sequencing, Diagnostics
Fitment	OEM Replacement Kit

Compatibility

Built for the ICP/Heil/Tempstar RGX036KEXA0AAA gas furnace. Control board kit 1183618 supersedes several earlier ICP-family boards — verify the OEM part number printed on your existing board and confirm the connector layout before installing.

Installation Guide

Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter before touching the board.
Access — Remove the control-compartment service panel.
Document — Photograph every plug and harness on the old board before unplugging — connector positions are critical.
Remove — Unplug each harness, release the board standoffs or screws, and lift out the failed board.
Install — Mount the new board with the supplied hardware and reconnect each harness to the matching keyed connector per your photos.
Test — Restore power, run a full heat cycle, and confirm correct ignition, blower delay, and a normal (no-fault) diagnostic LED.

Signs You Need a Replacement

No response on a call for heat — inducer and igniter stay dead
Blower runs constantly or won't start at all
Diagnostic LED flashes fault codes for parts that test good
Visible burnt traces, scorched relays, or a cracked board

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day hassle-free 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 RGX036KEXA0AAA — OEM Module | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGX036KEXA0AAA — OEM Module | 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 RGX036KEXA0AAA — OEM Module | 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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