{"product_id":"icp-transformer-for-wpa4244000rka1-40va-208-230v-to-24v-ships-today","title":"ICP Transformer for WPA4244000RKA1 — 40VA 208\/230V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM 40VA control transformer (part number 1173691) with its mounting barrier\/terminal block (part number 1176144) for the ICP WPA4244000RKA1 system. The transformer steps the incoming 208\/230V line voltage down to the 24V low-voltage power that runs the thermostat, control board, contactor coil, and other control circuits. At 40VA it supplies roughly 1.66 amps on the secondary — enough headroom for typical accessory loads. When a transformer fails, the entire low-voltage control system goes dead: the thermostat screen is blank, the contactor will not pull in, and nothing energizes even though line power is present. Transformers commonly fail from a shorted thermostat wire, a stuck contactor coil drawing excess current, or a power surge.\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\u003eOEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003e1173691 (transformer), 1176144 (barrier\/terminal)\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\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\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eWPA4244000RKA1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Direct 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\u003eThis 40VA 208\/230V-to-24V transformer is the factory replacement for the ICP WPA4244000RKA1 and its Tempstar, Heil, and Comfortmaker equivalents. The same VA rating and voltage configuration is used across many ICP WPA-series condensers and air handlers — verify the primary voltage, secondary voltage, VA rating, and mounting style against your original 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 breaker and verify zero voltage at the transformer leads with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control-box service panel to reach the transformer and barrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the primary (line) and secondary (24V) wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect all leads, then unbolt the transformer and barrier from the control panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer and barrier, wire the primary taps for your supply voltage (208 or 230), and reconnect the 24V secondary per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm 24V at the secondary terminals and that the thermostat and contactor energize.\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 — blank thermostat and dead control board\u003c\/li\u003e\n\u003cli\u003eSystem will not start even though line voltage is present\u003c\/li\u003e\n\u003cli\u003eRepeatedly blown low-voltage fuse on the control board\u003c\/li\u003e\n\u003cli\u003eBurnt smell or visible scorching at the transformer windings\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":"OEM","offer_id":63021538509171,"sku":"1176144","price":45.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047749271923,"sku":"1176144-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-1176144_67d05d0b-56f0-483f-9348-63cc93844b77.jpg?v=1782896700","url":"https:\/\/nationalhvacparts.com\/products\/icp-transformer-for-wpa4244000rka1-40va-208-230v-to-24v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}