{"product_id":"tempstar-ptac-thermostat-for-tea12r34stc-oem-control-1058517-ships-today","title":"Tempstar PTAC Thermostat for TEA12R34STC — OEM Control 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 TEA12R34STC packaged terminal air conditioner. The thermostat is the brain of the unit — it reads room temperature and signals the compressor, fan, and heating element to cycle on and off to maintain your setpoint. When a PTAC thermostat fails you will see erratic temperature swings, a unit that runs constantly or never starts, an unresponsive control panel, or heating and cooling modes that no longer switch correctly. Installing the exact factory-matched control restores precise, reliable temperature management without the guesswork of a universal 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\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 \/ Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTEA12R34STC\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 thermostat is engineered specifically for the Tempstar TEA12R34STC and shared ICP \/ Tempstar \/ Heil PTAC platforms that call out OEM part 1058517. Because it is the factory control, it matches the unit's wiring harness and connector exactly. Always confirm the part number printed on your existing thermostat 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 at the unit and the breaker, then verify zero voltage with a multimeter before touching any wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the front grille and control-access service panel to expose the thermostat assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wire connections and their terminal positions before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Release the thermostat retaining clips\/screws, unplug the connector or disconnect the labeled leads, and lift out the old control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new 1058517 thermostat, reconnect the harness or leads exactly per your photo, and secure the mounting hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, set a cooling and a heating call, and confirm the unit cycles correctly and holds the setpoint.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRoom temperature swings well above or below the setpoint.\u003c\/li\u003e\n\u003cli\u003eUnit short-cycles, runs continuously, or fails to start on a call.\u003c\/li\u003e\n\u003cli\u003eDisplay or buttons are unresponsive or show erratic readings.\u003c\/li\u003e\n\u003cli\u003eHeating and cooling modes no longer switch over properly.\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":63021646315891,"sku":"1058517-GEN","price":54.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048474591603,"sku":"1058517","price":71.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-thermostat-nonprogrammable-1058517_f7f0bcb9-6501-47e4-9cb3-cf8870a79d0a.jpg?v=1782960848","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-ptac-thermostat-for-tea12r34stc-oem-control-1058517-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}