{"product_id":"icp-40va-transformer-208-230v-to-24v-with-barrier-for-wja336000ktp0a1-ships-today-1","title":"ICP 40VA Transformer 208\/230V to 24V with Barrier for WJA336000KTP0A1 — Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM kit pairs the genuine 40VA control transformer (part #1173691) with its matching 24V terminal barrier (part #1176032) for the ICP \/ Tempstar \/ Heil WJA336000KTP0A1 system. The transformer steps the incoming 208\/230 VAC line voltage down to the 24 VAC low-voltage control signal that powers the thermostat, contactor coil, gas valve, and control board. The barrier provides a safe, organized landing point for the low-voltage connections. A dead transformer is a classic \"no power to thermostat \/ no response from system\" failure — when the secondary loses 24V output, nothing in the control circuit will energize.\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 Numbers\u003c\/td\u003e\n\u003ctd\u003e1173691 (Transformer), 1176032 (24V Barrier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eStep-Down Control Transformer with Terminal Barrier\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 \/ 230 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary 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\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 control transformer and barrier on the ICP\/Tempstar\/Heil WJA336000KTP0A1. The 40VA 208\/230-to-24V format is shared across many ICP-family furnaces, air handlers, and condensing units. Verify part numbers 1173691 and 1176032 and confirm your primary tap voltage 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 at the transformer primary leads with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control\/electrical access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the primary (line) and secondary (24V) wiring and the barrier terminal assignments before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Transfer the leads one at a time, then unbolt the old transformer and barrier from the cabinet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer and barrier, reconnect the primary tap matching your line voltage, and land the 24V leads per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, confirm 24 VAC across the secondary, and verify the thermostat and controls respond.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlank thermostat or no response from the system.\u003c\/li\u003e\n\u003cli\u003eNo 24 VAC measured across the transformer secondary.\u003c\/li\u003e\n\u003cli\u003eRepeatedly blown low-voltage fuse or burnt-smelling transformer.\u003c\/li\u003e\n\u003cli\u003eContactor and gas valve fail to energize despite line power present.\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":"Direct Replacement","offer_id":63027233882483,"sku":"1176032-GEN","price":29.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047951417715,"sku":"1176032","price":37.7,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1176032_6d31e001-4566-4658-891e-28dd5588ef2a.jpg?v=1782882409","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-208-230v-to-24v-with-barrier-for-wja336000ktp0a1-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}