{"product_id":"icp-defrost-control-board-for-yc024g-heat-pump-timer-ships-today-1","title":"ICP Defrost Control Board for YC024G — Heat Pump Timer | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis genuine OEM defrost control board (OEM part number 34332100) is the brain of the heat-pump cycle on your ICP\/Tempstar\/Heil YC024G outdoor unit. In heating mode it monitors the defrost thermostat and an internal timer, then commands the reversing valve and outdoor fan to clear frost and ice from the outdoor coil so the system keeps delivering heat. The board also coordinates the compressor contactor and 24V control signals. When a defrost board fails, the unit may ice over solid in winter, run continuously in defrost, fail to switch between heating and cooling, or stop responding to the thermostat entirely. Because the board ties together timing, the reversing valve, and the fan circuit, a faulty board can mimic many other failures — replacing it restores correct, automatic defrost operation.\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\u003e34332100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDefrost 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\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eDefrost timing, reversing valve \u0026amp; fan control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM 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\u003eEngineered as a direct OEM fit for the ICP \/ Tempstar \/ Heil YC024G heat pump condensing unit and other ICP family heat pumps that use board 34332100. Confirm your existing board carries the same part number and connector layout before ordering.\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 outdoor disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the condenser electrical access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and connector on the board before removing anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the harness connectors, release the mounting standoffs or screws, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new board on the standoffs and reconnect each harness exactly as photographed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a heating cycle, and confirm proper defrost initiation and termination.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOutdoor coil ices up heavily in heating mode and never defrosts.\u003c\/li\u003e\n\u003cli\u003eUnit gets stuck in defrost or short-cycles between modes.\u003c\/li\u003e\n\u003cli\u003eReversing valve or outdoor fan does not energize on schedule.\u003c\/li\u003e\n\u003cli\u003eNo response to the thermostat with 24V present at the board.\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":63027198230899,"sku":"34332100","price":180.64,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047497548147,"sku":"34332100-GEN","price":138.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-34332100_720e5351-38b0-4c06-acd7-e7d1e8982eff.jpg?v=1782886661","url":"https:\/\/nationalhvacparts.com\/products\/icp-defrost-control-board-for-yc024g-heat-pump-timer-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}