{"product_id":"icp-transformer-for-wja436000ktp0a1-40va-208-230-to-24v-ships-today-1","title":"ICP Transformer for WJA436000KTP0A1 — 40VA 208\/230 to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM control transformer steps down the incoming 208\/230V line voltage to the 24V control voltage your ICP\/Tempstar\/Heil system needs to run its thermostat, contactor coil, and low-voltage controls. Rated at 40VA, it delivers steady power across the entire 24V circuit. A failed transformer leaves the unit completely dead on a call for cooling or heating — the thermostat goes blank, the contactor won't pull in, and there's no low-voltage at the board. This kit includes OEM part 1173691 (TRANS 208\/230 to 24V 40VA) plus OEM part 1176032 (24V BARRIER) for a complete, safe replacement.\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\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1173691, 1176032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eStep-Down Control 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\u003eVA Rating\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\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003e24V Barrier (1176032)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered as a direct OEM fit for the ICP\/Tempstar\/Heil WJA436000KTP0A1 condensing unit. The 40VA 208\/230-to-24V rating is shared across many ICP-family WJA-series models — always confirm the primary voltage and VA rating against your existing transformer before installing.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the breaker and disconnect, then verify zero voltage with a multimeter on both line and low-voltage terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control panel service cover to expose the transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all primary and secondary wire connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect the line-voltage and 24V leads, then unbolt the failed transformer and barrier from the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer and 24V barrier, reconnect each lead per your photo, matching primary voltage taps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm 24V (±10%) across the secondary terminals on a call for operation.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo power to the thermostat — blank display\u003c\/li\u003e\n\u003cli\u003eContactor coil will not energize on a cooling call\u003c\/li\u003e\n\u003cli\u003eNo 24V reading across the transformer secondary\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, swelling, or a burnt-electrical smell at the transformer\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":63027232014707,"sku":"1176032","price":45.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047748125043,"sku":"1176032-GEN","price":34.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1176032_cbf178df-205e-4aee-b449-3b5d892ce573.jpg?v=1782896660","url":"https:\/\/nationalhvacparts.com\/products\/icp-transformer-for-wja436000ktp0a1-40va-208-230-to-24v-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}