{"product_id":"icp-furnace-control-board-for-wpg3484115rkc1-ignition-control-module-ships-today-1","title":"ICP Furnace Control Board for WPG3484115RKC1 — Ignition Control Module | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine ICP control board package (OEM circuit board 1178358 with ignition control module 1177661) is the electronic brain of the WPG3484115RKC1 package unit. It manages the entire heating sequence — energizing the inducer, proving the pressure switch, timing the igniter warm-up, opening the gas valve, monitoring flame through the sensor, and running safety lockouts. It also coordinates blower timing and relays the thermostat's calls for heat and cool. When the board fails, symptoms range from a completely dead system to intermittent no-heat faults, repeated ignition lockouts, or a blower that runs constantly. A flashing diagnostic LED that no longer follows the published fault codes is a strong sign the board itself has failed.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1178358 (circuit board), 1177661 (ignition control module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eIntegrated furnace \/ ignition control board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP (Tempstar \/ Heil \/ Comfortmaker)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eIgnition sequencing, flame monitoring, blower\/relay control, safety lockout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM direct replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eWPG3484115RKC1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect-fit replacement for the ICP Tempstar Heil WPG3484115RKC1 package unit, matching the original connector layout, mounting standoffs, and diagnostic LED scheme. Confirm the part numbers printed on your existing board before ordering.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the unit disconnect and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control\/blower compartment panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wiring harness connections before unplugging anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug each harness, release the mounting screws\/standoffs, and lift the old board out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, reconnect every harness exactly per your photo, and seat all locks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a full heat cycle, and verify normal ignition and a steady diagnostic LED.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSystem completely dead with confirmed 24V transformer output\u003c\/li\u003e\n\u003cli\u003eRepeated ignition lockouts with no fault in the gas train\u003c\/li\u003e\n\u003cli\u003eBlower or inducer that runs continuously or won't start\u003c\/li\u003e\n\u003cli\u003eDiagnostic LED dark, frozen, or flashing nonsensical codes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63027217891699,"sku":"1178358","price":231.4,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047538409843,"sku":"1178358-GEN","price":178.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1178358_94d1495a-6e7c-443d-b02a-7d9f85ef9bc7.jpg?v=1782888590","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-for-wpg3484115rkc1-ignition-control-module-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}