{"product_id":"icp-40va-transformer-for-wpa3482000rkb1-208-230v-to-24v-ships-today-1","title":"ICP 40VA Transformer for WPA3482000RKB1 — 208\/230V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine OEM 40VA control transformer (part #1173691) steps line voltage down from 208\/230V to 24V for the ICP\/Tempstar\/Heil model WPA3482000RKB1. The 24V output powers the contactor coil, defrost board, and thermostat circuit, so a failed transformer takes the entire low-voltage control system offline — no contactor pull-in, no fan, no compressor. This listing also covers the related control components used in the same circuit on this model: the DPDT 24V relay (part #1176137, Honeywell R8222B1232) and the 24V terminal barrier (part #1176148, 42-60). A transformer that hums loudly, runs hot, or reads no 24V on the secondary should be replaced rather than reset.\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\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\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\u003eRelated Parts\u003c\/td\u003e\n\u003ctd\u003e1176137 Relay (DPDT 24V), 1176148 Barrier (24V 42-60)\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\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect OEM fit for the ICP\/Tempstar\/Heil WPA3482000RKB1 unit and other 208\/230V systems that use a 40VA, 24V-secondary control transformer.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power and verify zero voltage with a multimeter at both the primary and secondary leads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the service\/control panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the primary and secondary wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the leads, unbolt the old transformer from the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer, match the 208\/230V primary taps and the 24V secondary leads to your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm 24V across the secondary with a meter, then verify the contactor energizes.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo 24V output on the secondary terminals.\u003c\/li\u003e\n\u003cli\u003eLoud humming, buzzing, or a burnt smell from the transformer.\u003c\/li\u003e\n\u003cli\u003eRepeatedly blown low-voltage fuse or tripped control circuit.\u003c\/li\u003e\n\u003cli\u003eContactor, relay, or thermostat circuit completely dead.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day on orders placed before 3 PM CST. 30-day returns on unused parts. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"Direct Replacement","offer_id":63027227459955,"sku":"1176148-GEN","price":32.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047960002931,"sku":"1176148","price":41.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1176148_86e397a8-b908-4329-8ade-70a1f32b7167.jpg?v=1782883088","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wpa3482000rkb1-208-230v-to-24v-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}