What are the specs for this Control Board?

The correct replacement for ICP model RGS303HSAA0AAAA – OEM Integrated Ignition Control Kit | 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 RGS303HSAA0AAAA – OEM Integrated Ignition Control Kit | Ships Today.

ICP

ICP Furnace Control Board for RGS303HSAA0AAAA – OEM Integrated Ignition Control Kit | Ships Today

Name: ICP Furnace Control Board for RGS303HSAA0AAAA – OEM Integrated Ignition Control Kit | Ships Today
Brand: ICP
SKU: 1183618
Price: 227.44 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM integrated furnace control board kit, part number 1183618, is the brain of the ICP / Tempstar / Heil RGS303HSAA0AAAA gas furnace. It manages the entire heat sequence — inducer start, pressure-switch proving, igniter warm-up, gas-valve timing, flame sensing, and blower on/off delays — and houses the diagnostic LED that reports fault codes. Control boards typically fail from voltage surges, cracked solder joints, burned relays, or corroded connectors. Symptoms include a completely dead furnace, no response to thermostat calls, the blower or inducer running continuously, no spark/igniter signal, or erratic short-cycling with no stored fault code. This factory kit restores correct, code-compliant sequencing and protects downstream components.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board (Kit)
Brand	ICP (Tempstar / Heil)
Line Voltage	120V
Control Voltage	24V
Application	Gas Furnace Ignition & Blower Control
Fitment	OEM Direct Replacement

Compatibility

Designed for the ICP / Tempstar / Heil RGS303HSAA0AAAA gas furnace and related models that specify OEM control board kit 1183618. Match the board's connector layout and part number to your existing unit before installing.

Installation Guide

Safety First – Disconnect power at the switch and breaker; verify zero voltage with a multimeter.
Access – Remove the furnace control/blower-compartment service panel.
Document – Photograph every wire and connector on the old board before disconnecting.
Remove – Unplug all harnesses, remove the mounting screws, and lift out the failed board.
Install – Mount the new board, transfer connectors one at a time, and reconnect exactly per your photo.
Test – Restore power, call for heat, and verify full sequence: inducer, igniter, burners, and blower.

Signs You Need a Replacement

Furnace is completely dead or unresponsive to the thermostat.
Inducer or blower runs continuously and won't shut off.
No igniter or gas-valve signal during a heat call.
Erratic short-cycling, burnt smell, or visibly scorched relays/traces on the old 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 for RG...

$227.44

Frequently Asked Questions

Does this Control Board fit my ICP RGS303HSAA0AAAA – OEM Integrated Ignition Control Kit | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS303HSAA0AAAA – OEM Integrated Ignition Control Kit | 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 RGS303HSAA0AAAA – OEM Integrated Ignition Control Kit | 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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