What are the specs for this Control Board?

The correct replacement for ICP model RGS300LDFA0AAAA — 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 RGS300LDFA0AAAA — Furnace Control | Ships Today.

ICP

ICP Control Board Kit for RGS300LDFA0AAAA — Furnace Control | Ships Today

Name: ICP Control Board Kit for RGS300LDFA0AAAA — Furnace Control | Ships Today
Brand: ICP
SKU: 1183618
Price: 220.94 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM control board kit (part number 1183618) is the integrated furnace control (IFC) that manages every operating sequence in your ICP Tempstar Heil RGS300LDFA0AAAA furnace. It governs ignition timing, blower and inducer relays, safety interlocks, and the diagnostic LED fault codes. Supplied as a complete kit, it includes the board and the hardware needed for a clean swap. A failed board commonly causes a furnace that won't fire, blower or inducer motors that won't run, erratic short cycling, or blank/flashing diagnostic codes. Replacing the IFC restores full automated control of the heating cycle.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Furnace Control Board Kit
Brand	ICP (Tempstar / Heil)
Function	Ignition, Blower & Inducer Sequencing
Includes	Control Board + Mounting Hardware Kit

Compatibility

Built for the ICP Tempstar Heil RGS300LDFA0AAAA and compatible RGS-series furnaces using this integrated furnace control. Match the connector layout and part number to your existing board before installing.

Installation Guide

Safety First — Disconnect power at the furnace switch and verify zero voltage with a multimeter.
Access — Remove the furnace control/blower compartment panel.
Document — Photograph every wire harness and connector position before disconnecting.
Remove — Unplug all connectors and unscrew the old board from its standoffs.
Install — Mount the new board on the standoffs and reconnect each harness exactly per your photo.
Test — Restore power and verify a full heat cycle: inducer, ignition, burners, and blower in sequence.

Signs You Need a Replacement

Furnace will not ignite or start a heat cycle
Blower or inducer motor fails to run
Erratic short cycling or no response to thermostat
Blank or rapidly flashing diagnostic LED codes

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 Control Board Kit for RGS300...

$220.94

Frequently Asked Questions

Does this Control Board fit my ICP RGS300LDFA0AAAA — Furnace Control | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RGS300LDFA0AAAA — 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 RGS300LDFA0AAAA — 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.

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