ICP Control Board for WPG3304040RKC1 — OEM Furnace Ignition Control Circuit Board | Ships Today

Overview

This genuine OEM furnace control board (OEM #1178358) with integrated ignition control module (OEM #1177661) is the brain of the ICP/Tempstar/Heil WPG3304040RKC1 package gas unit. It sequences the entire heating cycle — energizing the inducer, proving the pressure switch, firing the hot surface igniter, opening the gas valve, monitoring flame via the sensor, and timing the blower on and off delays. When the board fails you'll see no response to a heat call, an igniter or inducer that never energizes, erratic blower behavior, or a flashing diagnostic LED fault code. Replacing it with the exact OEM board preserves the factory ignition timing and flame-safety logic.

Specifications

Compatibility

Direct fit for the ICP/Tempstar/Heil WPG3304040RKC1 package gas/electric unit and related WPG-series models using the 1178358 control board with the 1177661 ignition control module. Match your existing board layout and connector positions before ordering.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage with a multimeter.
2. Access — Remove the control compartment service panel.
3. Document — Photo every plug and wire harness location on the old board before disconnecting.
4. Remove — Unplug each connector, remove the mounting screws or standoffs, and lift the board out.
5. Install — Mount the new board, reconnect every harness in the same position per your photos, and confirm the ignition control module is seated.
6. Test — Restore power, run a full heat cycle, and verify the diagnostic LED shows normal operation.

Signs You Need a Replacement

• No response to a thermostat heat call
• Inducer or igniter never energizes
• Blower runs continuously or not at all
• Diagnostic LED flashes a hard-lockout fault code

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.