{"product_id":"icp-hot-surface-igniter-ignition-control-board-for-wpg4304040lkb1-ships-today","title":"ICP Hot Surface Igniter \u0026 Ignition Control Board for WPG4304040LKB1 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM ignition assembly for the ICP \/ Tempstar \/ Heil WPG4304040LKB1 covers both the hot surface igniter (part 1177663) and the matching ignition control board (part 1186861). The hot surface igniter is a silicon element that glows orange-hot when energized, lighting the burners at the start of every heat cycle. The control board sequences the ignition — energizing the igniter, opening the gas valve, and proving flame before allowing the cycle to continue. Igniters are brittle and degrade with each heat cycle until they crack or fail to reach ignition temperature, while a failed board causes lockouts, no ignition, or short cycling. Replacing the worn igniter and, where needed, the control board restores reliable, safe lighting.\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\u003eIgniter Part Number\u003c\/td\u003e\n\u003ctd\u003e1177663\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Board Part Number\u003c\/td\u003e\n\u003ctd\u003e1186861\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHot Surface Igniter w\/ Ignition Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP (Tempstar \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIgniter Voltage\u003c\/td\u003e\n\u003ctd\u003e120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDesigned as a direct OEM fit for the ICP \/ Tempstar \/ Heil WPG4304040LKB1 packaged gas furnace. Both components are the factory-specified parts for this model, so they install without adapters. Verify which part has failed — many no-heat calls are solved by the igniter alone.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Shut off gas and disconnect power; verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the burner\/service panel to reach the igniter and control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photo all wiring and the igniter bracket position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter lead and unscrew the element by its ceramic base only; never touch the silicon. If replacing the board, label every connector first.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter without touching the hot surface, then reconnect (and reseat the board if replaced) per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, call for heat, and confirm the igniter glows and burners light on the first try.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo heat — burners never ignite\u003c\/li\u003e\n\u003cli\u003eIgniter glows weakly or not at all\u003c\/li\u003e\n\u003cli\u003eCracked or visibly damaged silicon element\u003c\/li\u003e\n\u003cli\u003eFurnace locks out or short cycles on ignition failure\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":63021517504883,"sku":"1186861","price":51.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047603749235,"sku":"1186861-GEN","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1186861_d87b5ac3-e103-451f-a95e-bea0cf24a89d.jpg?v=1782891450","url":"https:\/\/nationalhvacparts.com\/products\/icp-hot-surface-igniter-ignition-control-board-for-wpg4304040lkb1-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}