ICP Ignition Control Board for WPG3244040RKC1 — OEM 1178358 | Ships Today
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Overview
This OEM ignition control board (part number 1178358), which functions as the ignition control module (part number 1177661), is the brain of the ICP Tempstar/Heil WPG3244040RKC1 packaged gas unit's heating sequence. It manages the entire ignition routine — energizing the inducer, proving the pressure switch, powering the hot surface igniter, opening the gas valve, monitoring flame, and timing the blower on/off delays. It also runs the safety lockout logic that shuts the system down on repeated failed ignitions. When the board fails, the furnace may not start at all, may lock out intermittently, or may run the blower continuously. A diagnostic LED on the board flashes fault codes that help confirm a board fault versus a sensor problem.
Specifications
| Spec | Value |
|---|---|
| Part Numbers | 1178358 (Circuit Board), 1177661 (Ignition Control Module) |
| Type | Integrated Ignition Control Board |
| Brand | ICP / Tempstar / Heil |
| Function | Ignition Sequence & Safety Timing |
| Fitment | OEM Direct Replacement |
Compatibility
Direct OEM replacement for the ICP Tempstar Heil WPG3244040RKC1 packaged gas system. Control boards are model-specific — match the original part number and connector layout exactly, as substitute boards can have different timing and pinouts.
Installation Guide
- Safety First — Disconnect power and shut off the gas supply. Verify zero voltage with a multimeter.
- Access — Remove the control panel to expose the board.
- Document — Photograph every wire harness and connector position before unplugging anything.
- Remove — Unplug each connector, release the mounting standoffs or screws, and lift out the old board.
- Install — Seat the new board on its standoffs and reconnect every harness exactly per your photo.
- Test — Restore gas and power, run a full heat cycle, and confirm the diagnostic LED shows a normal status with clean ignition.
Signs You Need a Replacement
- No response to a heat call despite good igniter, switch, and valve.
- Intermittent or random lockouts with no consistent fault source.
- Blower runs continuously or fails to start on schedule.
- Board LED is dark, or visible burn marks/corrosion 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