ICP Furnace Control Board for WPG3604130LKC1 – Ignition Control Module | Ships Today
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Overview
This OEM ICP furnace control board (circuit board #1178358 with ignition control module #1177661) is the brain of your WPG3604130LKC1 system. It sequences the entire heating cycle — proving the pressure switch, energizing the inducer, timing the hot surface igniter warm-up, opening the gas valve, confirming flame, and then bringing on the blower. It also monitors safety limits and flashes diagnostic fault codes through its onboard LED. When this board fails, the symptoms range from a furnace that won't ignite at all, to short-cycling, to a unit that locks out after several failed ignition attempts. Cracked solder joints, a fried igniter relay, blown onboard fuse, or burnt connector pins are typical failure modes — often the result of a power surge or a chronically high-current igniter dragging the board down.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1178358 (Circuit Board), 1177661 (Ignition Control Module) |
| Type | Integrated Furnace Ignition Control Board |
| Brand | ICP / Tempstar / Heil |
| Control Voltage | 24V |
| Function | Ignition sequencing, flame proving, blower & safety control |
| Fit | OEM Replacement |
Compatibility
Direct-fit replacement for the ICP Tempstar Heil model WPG3604130LKC1 packaged unit and ICP-family equipment using this ignition control module. Match the board's part number and connector layout to your existing board before installing.
Installation Guide
- Safety First – Disconnect power at the breaker and unit disconnect, then verify zero voltage with a multimeter.
- Access – Remove the control/blower service panel to reach the board.
- Document – Photograph every wire harness and connector position before unplugging — connectors are keyed but labeling helps.
- Remove – Unplug all connectors, release the mounting standoffs or 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 call; confirm proper ignition sequence and a steady diagnostic LED with no fault codes.
Signs You Need a Replacement
- No ignition sequence — inducer, igniter, or gas valve never energize
- Furnace locks out after repeated failed ignition attempts
- Erratic short-cycling or blower running continuously
- Diagnostic LED dark, or burnt/scorched connectors and relays 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