{"product_id":"icp-40va-transformer-for-wpg3482090rkb1-208-230v-to-24v-class-2-ships-today","title":"ICP 40VA Transformer for WPG3482090RKB1 — 208\/230V to 24V Class 2 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM 40VA control transformer (part 1173691) steps 208\/230V line voltage down to the 24V control circuit that powers the contactor coil, gas valve, thermostat, and control board on the ICP \/ Tempstar \/ Heil WPG3482090RKB1 packaged unit. This listing includes the matching 24V barrier (part 1176032) used to isolate and protect the low-voltage wiring. When a transformer fails — usually from a shorted control circuit, a stuck contactor, or simple age — the entire 24V system goes dead: no thermostat response, no cooling or heating call, and often a blown low-voltage fuse on the control board. A transformer that hums loudly, runs hot, or shows 0V on its secondary under load needs 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), 1176032 (24V barrier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Type\u003c\/td\u003e\n\u003ctd\u003eStep-Down Control Transformer, Class 2\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eWPG3482090RKB1\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-fit OEM replacement for the ICP\/Tempstar\/Heil WPG3482090RKB1 packaged gas\/electric unit. The 40VA 208\/230-to-24V transformer is shared across many ICP-family packaged units. Verify part number 1173691 and your primary voltage tap 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 unit disconnect. Verify zero voltage with a multimeter at the line terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control\/electrical compartment service panel.\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 — Disconnect the primary leads (matching your 208 or 230V tap) and the 24V secondary leads, then unbolt the transformer and barrier from the bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer and 24V barrier, land the primary leads on the correct voltage tap, and reconnect the 24V secondary per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm 24–28V across the secondary, then verify the thermostat commands cooling and heating normally.\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 control power — thermostat blank or unit fully unresponsive\u003c\/li\u003e\n\u003cli\u003eRepeatedly blown low-voltage fuse on the control board\u003c\/li\u003e\n\u003cli\u003eTransformer hums loudly, runs very hot, or smells burnt\u003c\/li\u003e\n\u003cli\u003e0V or low voltage measured on the secondary under load\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":63021527105907,"sku":"1176032-GEN","price":29.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047962526067,"sku":"1176032","price":38.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1176032_3457f4dd-30d2-40bb-9ce5-83b4ebb2e61a.jpg?v=1782883230","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wpg3482090rkb1-208-230v-to-24v-class-2-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}