{"product_id":"icp-40va-transformer-for-wja330000ktp0a2-208-230v-to-24v-with-barrier-ships-today","title":"ICP 40VA Transformer for WJA330000KTP0A2 — 208\/230V to 24V with Barrier | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis genuine OEM control transformer (part number 1173691) steps the incoming 208\/230V line voltage down to the 24V control voltage required by the ICP \/ Tempstar \/ Heil WJA330000KTP0A2 system, and ships with the matching 24V barrier (part number 1176032) that protects and isolates the low-voltage terminals. Rated at 40VA, this transformer powers the thermostat, contactor coil, control board, and other 24V accessories. When a control transformer fails, the entire low-voltage circuit goes dead — you will see a blank thermostat, a system that will not respond to any call, no 24V at the control board, or a transformer that is overheated, buzzing, or has a burned smell. A blown transformer is frequently the result of a shorted low-voltage wire or a failed downstream component, so inspect the 24V circuit for shorts before energizing the 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 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\u003eControl Transformer with 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\/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\u003eFitment\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\u003eFits the ICP, Tempstar, Heil, Comfortmaker, and Arcoaire WJA330000KTP0A2 unit and related ICP-family systems that use a 40VA 208\/230V-to-24V control transformer. Confirm your primary voltage, secondary voltage, and VA rating match 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 with a multimeter before servicing.\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) leads and the barrier position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the primary and secondary leads, then unbolt the old transformer and barrier from the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer and barrier, match the primary taps to your supply voltage, and reconnect each lead per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, confirm 24V at 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 and no system response to any call\u003c\/li\u003e\n\u003cli\u003eNo 24V measured at the control board or transformer secondary\u003c\/li\u003e\n\u003cli\u003eTransformer is hot to the touch, buzzing, or smells burned\u003c\/li\u003e\n\u003cli\u003eRepeatedly blown low-voltage fuse after a circuit short\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":63021558956403,"sku":"1176032-GEN","price":32.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047957741939,"sku":"1176032","price":41.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1176032_23b738ce-2e65-442b-91f8-e73da3308bf8.jpg?v=1782882877","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wja330000ktp0a2-208-230v-to-24v-with-barrier-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}