{"product_id":"tempstar-ptac-thermostat-for-tea12k34stc-oem-part-1058517-ships-today","title":"Tempstar PTAC Thermostat for TEA12K34STC — OEM Part 1058517 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is a genuine OEM PTAC thermostat (factory part number 1058517, \"TSTAT PTAC X\") for the Tempstar TEA12K34STC packaged terminal air conditioner\/heat pump. The thermostat is the command center of the unit — it reads room temperature and signals the compressor, fan, and heating element to cycle on and off to hold your setpoint. When it fails, the unit may stop responding to temperature changes, short-cycle, run continuously, or fail to switch between heating and cooling. Installing the correct OEM control restores accurate temperature sensing and reliable mode switching without the guesswork of a universal aftermarket part.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\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\u003eType\u003c\/td\u003e\n\u003ctd\u003ePTAC Thermostat (TSTAT PTAC X)\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\u003eTEA12K34STC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePackaged Terminal AC \/ Heat Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered as a direct-fit replacement for the Tempstar TEA12K34STC. This OEM thermostat assembly matches the original factory control for plug-and-play installation. Always confirm your unit's model and the existing part number before ordering.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the unit and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the front cover\/service panel to expose the control area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wiring and connector positions before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the thermostat harness\/connectors and release the old thermostat from its mounting clips or screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new OEM thermostat, route the sensor, and reconnect every wire exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, set a call for cooling and then heating, and confirm the unit cycles correctly and holds setpoint.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUnit ignores temperature changes or won't reach setpoint\u003c\/li\u003e\n\u003cli\u003eConstant running or rapid short-cycling\u003c\/li\u003e\n\u003cli\u003eNo response when switching between heat and cool modes\u003c\/li\u003e\n\u003cli\u003eErratic or no display\/control response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day on orders placed 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":63021646610803,"sku":"1058517-GEN","price":64.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048473379187,"sku":"1058517","price":84.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-thermostat-nonprogrammable-1058517_6e6e3f04-bd2b-425d-961b-4f7c7b42f8d2.jpg?v=1782960828","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-ptac-thermostat-for-tea12k34stc-oem-part-1058517-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}