{"product_id":"icp-control-board-circuit-board-for-wpa4604000rkb1-oem-1178001-ships-today-1","title":"ICP Control Board Circuit Board for WPA4604000RKB1 — OEM 1178001 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM circuit control board (OEM part 1178001) is the electronic brain of your ICP\/Tempstar\/Heil WPA4604000RKB1 system. It sequences the ignition cycle, controls blower and inducer timing, monitors safety inputs like limit and pressure switches, and routes 24-volt signals between the thermostat and the system's major components. Control boards fail from voltage spikes, heat stress, moisture, and burnt relays. Symptoms of a failing board include no response on a call for heating or cooling, blower or inducer that won't start or won't shut off, blinking diagnostic fault codes, intermittent operation, and visible burn marks, corrosion, or a cracked relay on the board.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\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\u003e1178001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eIntegrated Control \/ Circuit 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\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eIgnition, blower, inducer, and safety control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM replacement for the ICP\/Tempstar\/Heil WPA4604000RKB1 packaged unit and related ICP-family equipment using this control board. Match the board's part number and connector layout to your existing board before installing.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control-compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every harness plug and wire position on the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug all connectors and remove the mounting screws or standoffs holding the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board and reconnect each harness to the matching connector per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a heating and cooling cycle, and confirm correct sequencing with no fault codes.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo response from the system on a call for heat or cool.\u003c\/li\u003e\n\u003cli\u003eBlower or inducer won't start or won't shut off.\u003c\/li\u003e\n\u003cli\u003eBlinking diagnostic fault codes on the board LED.\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, corrosion, or a damaged relay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\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":63027225395571,"sku":"1178001","price":246.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047462224243,"sku":"1178001-GEN","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1178001_3af50a79-cf26-42c3-aa5b-b40fb2485095.jpg?v=1782885333","url":"https:\/\/nationalhvacparts.com\/products\/icp-control-board-circuit-board-for-wpa4604000rkb1-oem-1178001-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}