{"product_id":"icp-furnace-control-board-for-sup20e230v1ia-oem-b0353101-w-mounting-plate-ships-today","title":"ICP Furnace Control Board for SUP20E230V1IA – OEM B0353101 w\/ Mounting Plate | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM control board package for the ICP SUP20E230V1IA includes the genuine B0353101 circuit board and the matching B03529 control-board mounting plate. The control board is the brain of the unit — it sequences the blower, manages safety lockouts, reads thermostat calls, and drives the 24V control circuit. When it fails you typically see no response to a thermostat call, blower that won't start or won't stop, flashing diagnostic LED fault codes, or a unit that locks out repeatedly. Replacing the board with the correct OEM part restores reliable, code-compliant operation and avoids the guesswork of a universal retrofit.\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\u003eCircuit Board Part Number\u003c\/td\u003e\n\u003ctd\u003eB0353101\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Plate Part Number\u003c\/td\u003e\n\u003ctd\u003eB03529\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 (Heil \/ Tempstar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Exact-Fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eBuilt for the ICP SUP20E230V1IA and shared across ICP-family units marketed under Heil, Tempstar, and Comfortmaker. Match the printed B0353101 number on your existing board before ordering, as ICP uses several visually similar boards.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e – Disconnect power and verify zero voltage with a multimeter before touching the board.\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 wire and connector position on the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e – Unplug the harnesses, unscrew the board from the B03529 plate, and lift it out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e – Mount the new board on the plate and reconnect each harness exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e – Restore power, send a thermostat call, and confirm proper blower and ignition sequencing with no fault codes.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo response to a thermostat heat or cool call\u003c\/li\u003e\n\u003cli\u003eBlower runs constantly or never engages\u003c\/li\u003e\n\u003cli\u003eRepeated lockouts or flashing LED fault codes\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, scorching, or swollen components on the board\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 on uninstalled electronics. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63027260490099,"sku":"B0353101","price":246.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047528546675,"sku":"B0353101-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-B0353101_22cd2c84-716f-473d-9fbd-01ede72c55ba.jpg?v=1782888323","url":"https:\/\/nationalhvacparts.com\/products\/icp-furnace-control-board-for-sup20e230v1ia-oem-b0353101-w-mounting-plate-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}