{"product_id":"icp-40va-transformer-for-wpg3424060lkc1-208-230v-to-24v-oem-ships-today-1","title":"ICP 40VA Transformer for WPG3424060LKC1 — 208\/230V to 24V OEM | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis ICP 40VA control transformer (OEM #1173691) steps the line-voltage 208\/230V supply down to the 24V control voltage used by the WPG3424060LKC1's thermostat, control board, gas valve, and contactor. It ships with the matching 24V barrier (OEM #1178431) used to isolate and protect the low-voltage terminals. Without a working transformer, the unit has no control power — the thermostat goes dark and nothing energizes. A blown or shorted transformer is a frequent culprit when a system is completely unresponsive despite having line power.\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), 1178431 (24V Barrier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eControl 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\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eWPG3424060LKC1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned for the ICP \/ Tempstar \/ Heil WPG3424060LKC1 package gas\/electric unit. The 208\/230V primary and 40VA rating must match your existing transformer; the included 24V barrier (1178431) protects the secondary terminals per the factory layout.\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 on both primary and secondary.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all primary and secondary leads and the barrier position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the leads, remove the mounting screws, and lift out the old transformer and barrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer, install the 24V barrier, and reconnect the primary (line) and secondary (24V) leads exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm 24V at the secondary and that the thermostat and controls power up.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThermostat is blank and no controls respond despite line power present\u003c\/li\u003e\n\u003cli\u003eNo 24V measured at the secondary terminals\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, melted housing, or a burnt-electrical smell\u003c\/li\u003e\n\u003cli\u003eRepeated control fuse or transformer failures from a downstream 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. National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"Direct Replacement","offer_id":63027220382067,"sku":"1178431-GEN","price":31.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047962493299,"sku":"1178431","price":40.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1178431_3a60c8f5-8a10-4cee-8b07-3dd8d5c103a4.jpg?v=1782883222","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wpg3424060lkc1-208-230v-to-24v-oem-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}