What are the specs for this Control Board?

The correct replacement for ICP model RGS303HRAA0AAAA — Integrated Ignition 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 RGS303HRAA0AAAA — Integrated Ignition Control | Ships Today.

ICP

ICP Furnace Control Board Kit for RGS303HRAA0AAAA — Integrated Ignition Control | Ships Today

Name: ICP Furnace Control Board Kit for RGS303HRAA0AAAA — Integrated Ignition 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 OEM control board kit (part #1183618, KIT CONTROL BOARD) is the integrated furnace control (IFC) brain for the ICP/Tempstar/Heil RGS303HRAA0AAAA gas furnace. The board manages the entire ignition sequence: inducer start-up, pressure switch proving, igniter warm-up, gas valve timing, blower on/off delays, and safety lockouts. It also runs continuous diagnostics and flashes fault codes via its onboard LED. When the board fails, the furnace may be completely dead, stuck in lockout, short-cycling, or running the blower continuously. Supplied as a complete kit for a clean, direct replacement.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP (Tempstar / Heil)
Line Voltage	120V
Control Voltage	24V
Fit	OEM Direct Replacement

Compatibility

Built for the ICP/Tempstar/Heil RGS303HRAA0AAAA furnace and shared ICP-family platforms (Comfortmaker, Arcoaire, KeepRite). Match your existing board part number and connector layout before ordering.

Installation Guide

Safety First — Disconnect power at the breaker/switch and verify zero voltage with a multimeter.
Access — Remove the blower compartment service panel.
Document — Photograph every wire and connector on the existing board before disconnecting.
Remove — Unplug all harnesses, remove the mounting screws, and lift the old board out.
Install — Mount the new board, then reconnect each harness exactly per your photo.
Test — Restore power, run a full heat cycle, and confirm proper sequencing with no fault codes.

Signs You Need a Replacement

Furnace completely unresponsive with no LED activity.
Repeated ignition lockouts despite good igniter and flame sensor.
Blower runs constantly or fails to start.
Erratic short-cycling or scrambled diagnostic codes.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. 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 RGS303HRAA0AAAA — Integrated Ignition Control | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS303HRAA0AAAA — Integrated Ignition 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 RGS303HRAA0AAAA — Integrated Ignition 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