{"product_id":"icp-transformer-for-wpg3604130lkc1-40va-208-230v-to-24v-ships-today-1","title":"ICP Transformer for WPG3604130LKC1 – 40VA 208\/230V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM ICP control transformer (part #1173691) steps down 208\/230-volt line power to the 24-volt low-voltage control signal that runs the thermostat, contactor coil, ignition control, and gas valve on your WPG3604130LKC1 system. Rated at 40VA, it delivers the steady control current the board demands during a heating or cooling call. A failed transformer is one of the most common no-heat \/ no-cool callbacks: when it burns open or shorts, the entire 24V control circuit goes dead — the thermostat screen blanks, the contactor never pulls in, and the furnace will not ignite. Buzzing, a scorched smell, or a tripped low-voltage fuse are classic signs the transformer has failed. This assembly also includes the matching 24V barrier (#1178431) for a complete control-power replacement.\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\u003e1173691 (Transformer), 1178431 (24V Barrier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eControl Transformer\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\u003eRating\u003c\/td\u003e\n\u003ctd\u003e40 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Voltage\u003c\/td\u003e\n\u003ctd\u003e208\/230V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\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-fit replacement for the ICP Tempstar Heil model WPG3604130LKC1 packaged unit and other ICP-family equipment using a 208\/230V-to-24V 40VA control transformer. Always confirm your existing transformer's VA rating and voltage taps against this part 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 breaker and unit disconnect, then verify zero voltage with a multimeter on the line terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e – Remove the control-access service panel to expose the transformer and control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e – Photograph all primary and secondary leads before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e – Note the line-voltage tap in use (208 vs 230), disconnect primary and secondary leads, and unbolt the old transformer from its bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e – Mount the new transformer, land the primary on the matching voltage tap, and reconnect the 24V secondary per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e – Restore power, confirm 24V across the secondary, and verify the thermostat powers up and the system responds to a call.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo 24V at the thermostat — blank screen or dead controls\u003c\/li\u003e\n\u003cli\u003eRepeatedly blown low-voltage control fuse\u003c\/li\u003e\n\u003cli\u003eAudible buzzing or a burnt smell from the transformer\u003c\/li\u003e\n\u003cli\u003eContactor and ignition control fail to energize on a call\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":63027215663475,"sku":"1178431","price":37.64,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047752581491,"sku":"1178431-GEN","price":28.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1178431_0af6f4b4-5d5b-431f-8abe-2df0df97fa5b.jpg?v=1782896822","url":"https:\/\/nationalhvacparts.com\/products\/icp-transformer-for-wpg3604130lkc1-40va-208-230v-to-24v-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}