{"product_id":"tempstar-ptac-thermostat-for-tha12r34sta-oem-part-1058517-ships-today","title":"Tempstar PTAC Thermostat for THA12R34STA — OEM Part 1058517 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is the genuine OEM PTAC thermostat (part number 1058517, \"TSTAT PTAC X\") for the Tempstar THA12R34STA packaged terminal heat pump. The thermostat measures room temperature and tells the unit when to heat or cool to hold your setpoint. A failing thermostat can leave the unit unresponsive to temperature changes, cause short-cycling, continuous operation, or an inability to switch modes. Replacing it with the proper OEM control restores accurate temperature management.\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\u003e1058517\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eTSTAT PTAC X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePTAC Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (ICP \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTHA12R34STA\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\u003eThis thermostat is the factory-specified control for the Tempstar THA12R34STA PTAC heat pump and other ICP\/Heil packaged terminal units sharing OEM part 1058517. Verify your existing part number before ordering.\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 to the PTAC unit and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the front cover and control-area service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wiring and connector positions before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the thermostat harness and release the old thermostat from its clips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new thermostat and reconnect the harness exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, issue a heating then a cooling call, and verify operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUnit ignores setpoint or fails to start\u003c\/li\u003e\n\u003cli\u003eContinuous running or rapid short-cycling\u003c\/li\u003e\n\u003cli\u003eCannot switch between heating and cooling\u003c\/li\u003e\n\u003cli\u003eBlank or unresponsive controls\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":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021640155507,"sku":"1058517-GEN","price":64.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048482947443,"sku":"1058517","price":83.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-thermostat-nonprogrammable-1058517_023bbd90-d881-4224-a17f-d9699e3fe897.jpg?v=1782961125","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-ptac-thermostat-for-tha12r34sta-oem-part-1058517-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}