ICP Control Board for WPG3424060LKC1 — OEM Ignition Control Module | Ships Today

Overview

This ICP control board / ignition control module (OEM circuit board #1178358 and ignition control module #1177661) is the brain of the WPG3424060LKC1 package unit's heating sequence. It manages the ignition sequence — energizing the inducer, proving the pressure switch, powering the hot surface igniter, opening the gas valve, sensing flame, and running the blower on the correct timing. It also enforces safety lockouts on flame failure or pressure faults. When this board fails you'll see no ignition, erratic blower behavior, repeated lockouts, or a unit that ignores the thermostat entirely.

Specifications

Compatibility

Built for the ICP / Tempstar / Heil WPG3424060LKC1 package gas/electric unit. Match OEM numbers 1178358 / 1177661 to your failed board; control boards are sequence- and pinout-specific and a mismatched board will not stage ignition correctly.

Installation Guide

1. Safety First — Disconnect power at the unit disconnect and shut off gas. Verify zero voltage with a multimeter.
2. Access — Remove the control compartment service panel.
3. Document — Photograph every wire harness and terminal location on the board before disconnecting — this is critical for a multi-connection board.
4. Remove — Unplug all connectors, remove the mounting screws/standoffs, and lift out the old board.
5. Install — Mount the new board, then reconnect each harness exactly per your photos. Confirm no pins are bent or mis-seated.
6. Test — Restore gas and power, run a full heat cycle, and verify proper ignition sequence and blower timing.

Signs You Need a Replacement

• No response to thermostat heat calls despite control power
• Repeated ignition lockouts with no other failed component found
• Blower runs continuously or won't start on the correct delay
• Visible scorching, burnt traces, or a failed onboard fuse/relay

Shipping & Returns

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