{"product_id":"tempstar-ptac-thermostat-for-tha07k25sta-oem-part-1058517-ships-today","title":"Tempstar PTAC Thermostat for THA07K25STA — OEM Part 1058517 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is the genuine OEM PTAC thermostat (part number 1058517) for the Tempstar THA07K25STA packaged terminal air conditioner. The thermostat is the brain of the PTAC unit — it reads room temperature and signals the compressor, fan, and heating elements to cycle on and off to maintain your setpoint. When a PTAC thermostat fails you will typically see the unit refusing to start, running continuously, short-cycling, or ignoring the temperature dial entirely. Because it is a direct factory replacement, it drops into the existing control pocket and wiring harness without adapters or rewiring. It is built for the low-voltage 24V control circuit used throughout the THA07K25STA platform.\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\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 \/ Heil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl 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\u003eTHA07K25STA\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\u003eEngineered specifically for the Tempstar\/Heil THA07K25STA PTAC. As OEM part 1058517 it is the exact thermostat the unit shipped with from the factory, so no recalibration or controller reprogramming is required after installation.\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 cord or breaker and verify zero voltage with a multimeter before touching any wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the PTAC front grille and control-housing service panel to expose the thermostat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all thermostat wire terminations and the dial position before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Release the thermostat mounting clip, slide it out of the control pocket, and disconnect the low-voltage leads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new 1058517 thermostat, reconnect each lead exactly as photographed, and clip it into place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, set a cooling and a heating call, and confirm the compressor and fan respond to the dial.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUnit will not start or stop in response to the temperature dial\u003c\/li\u003e\n\u003cli\u003ePTAC runs continuously and never satisfies the setpoint\u003c\/li\u003e\n\u003cli\u003eShort-cycling — compressor turns on and off rapidly\u003c\/li\u003e\n\u003cli\u003eErratic temperature control or no response to setpoint changes\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":63021641924979,"sku":"1058517-GEN","price":72.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048479670643,"sku":"1058517","price":93.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-thermostat-nonprogrammable-1058517_aa016dc7-1aac-4d36-a400-656a3ad9aa6e.jpg?v=1782961010","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-ptac-thermostat-for-tha07k25sta-oem-part-1058517-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}