What are the specs for this Control Board?

The correct replacement for ICP model RGS243HEAA0AAAA — 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 RGS243HEAA0AAAA — Integrated Ignition Control | Ships Today.

ICP

ICP Furnace Control Board for RGS243HEAA0AAAA — Integrated Ignition Control | Ships Today

Name: ICP Furnace Control Board for RGS243HEAA0AAAA — Integrated Ignition Control | Ships Today
Brand: ICP
SKU: 1183618
Price: 206.70 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM furnace control board kit (part #1183618) is the integrated ignition control for the ICP/Tempstar/Heil RGS243HEAA0AAAA gas furnace. The board manages the entire heating sequence — it sequences the inducer motor, proves the pressure switch, energizes the igniter, opens the gas valve, monitors flame, and times the blower on/off delays. It also runs the board's onboard diagnostics, flashing fault codes through the status LED. When this board fails, the furnace typically will not start, locks out after a few ignition attempts, or short-cycles. Replacing it with the correct OEM control restores reliable, code-correct operation.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board (KIT)
Brand	ICP / Tempstar / Heil
Control Voltage	24V
Function	Ignition, blower & safety sequencing
Fitment	OEM direct replacement

Compatibility

Direct OEM replacement for the ICP Tempstar Heil model RGS243HEAA0AAAA gas furnace and is shared across closely related RGS-series single-stage gas furnaces using the same control platform. Always confirm your existing board part number 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 blower-compartment service panel.
Document — Photograph every wire and connector on the existing board before disconnecting.
Remove — Unplug the low-voltage and line-voltage harnesses, remove the mounting screws/standoffs, and lift out the old board.
Install — Mount the new board, reconnect each harness exactly per your photo, and reseat all locking connectors.
Test — Restore power, run a heat cycle, and confirm proper igniter, gas valve, flame, and blower sequencing with no fault codes.

Signs You Need a Replacement

Furnace will not ignite or has no response to a heat call
Repeated ignition lockout or flashing fault/error codes
Blower runs constantly or never starts
Visible burn marks, corrosion, or scorched traces/relays on the 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...

$206.70

Frequently Asked Questions

Does this Control Board fit my ICP RGS243HEAA0AAAA — Integrated Ignition Control | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS243HEAA0AAAA — 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 RGS243HEAA0AAAA — 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.

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