What are the specs for this Control Board?

The correct replacement for ICP model WPG3484090LKC1 — Integrated Ignition Control 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 WPG3484090LKC1 — Integrated Ignition Control Module | Ships Today.

ICP

ICP Furnace Control Board for WPG3484090LKC1 — Integrated Ignition Control Module | Ships Today

Name: ICP Furnace Control Board for WPG3484090LKC1 — Integrated Ignition Control Module | Ships Today
Brand: ICP
SKU: 1178358
Price: 214.50 USD
Availability: InStock

SKU: 1178358 Brand: ICP

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Overview

This OEM integrated furnace control board (part numbers 1178358 circuit board and 1177661 ignition control module) is the electronic brain of your ICP/Tempstar/Heil WPG3484090LKC1 packaged gas/electric unit. It sequences the entire heating cycle — energizing the inducer, proving the pressure switch, powering the hot surface igniter, opening the gas valve, and timing the blower on/off delays. It continuously monitors flame via the sensor and provides safety lockout if ignition fails. When this board fails you will typically see no ignition, intermittent heat, a furnace stuck in lockout, or a control LED flashing a diagnostic fault code. A failed board is the most common cause of complete no-heat conditions once the igniter and pressure switch test good.

Specifications

Spec	Value
Part Number	1178358 / 1177661
Type	Integrated Furnace Ignition Control Board
Brand	ICP / Tempstar / Heil
Control Voltage	24V
Function	Ignition sequencing, blower timing, flame sense, safety lockout

Compatibility

Designed as a direct OEM replacement for the ICP/Tempstar/Heil WPG3484090LKC1 packaged gas/electric unit. Built under the ICP family of brands including Tempstar, Heil, and Comfortmaker. Always match your existing board's part number and connector layout before installing.

Installation Guide

Safety First — Disconnect power at the unit disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the control/blower access panel.
Document — Photograph every wire and connector on the existing board before disconnecting anything.
Remove — Unplug all harness connectors and ground wires, remove the mounting screws, and lift out the old board.
Install — Mount the new board, then reconnect each harness exactly per your photos.
Test — Restore power and run a full heat cycle; confirm proper ignition, flame proof, and blower operation with no fault codes.

Signs You Need a Replacement

Furnace will not ignite or goes straight to lockout
Diagnostic LED flashing an error/fault code
Blower runs continuously or never starts
Intermittent heating that resets after a power cycle

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 WP...

$214.50

Frequently Asked Questions

Does this Control Board fit my ICP WPG3484090LKC1 — Integrated Ignition Control Module | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP WPG3484090LKC1 — Integrated Ignition Control 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 WPG3484090LKC1 — Integrated Ignition Control 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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