{"product_id":"tempstar-ptac-thermostat-for-tha15k34sta-oem-part-1058517-ships-today","title":"Tempstar PTAC Thermostat for THA15K34STA — 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 THA15K34STA heat pump system. The thermostat is the control brain of your unit — it reads room temperature and signals the compressor, fan, and reversing valve to cycle heating and cooling. A failed thermostat is one of the most common causes of a system that won't start, runs constantly, or cannot hold a setpoint. This is the same part used by Tempstar, Heil, and ICP for compatible PTAC and packaged equipment, ensuring a precise electrical and mechanical fit.\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 (Heil \/ ICP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTHA15K34STA\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\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 THA15K34STA. Because Tempstar, Heil, Comfortmaker, and ICP share a common parts platform, OEM part 1058517 also fits a range of compatible PTAC and packaged heat pump models from these brands. Always confirm your unit's part number against 1058517 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 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 unit's front service panel to reach the control\/thermostat assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all thermostat wiring connections before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the low-voltage leads, release the mounting clips or screws, and lift out the old thermostat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new 1058517 thermostat and reconnect each wire exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify the unit responds to heating, cooling, and fan commands at 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\u003eUnit will not turn on or fails to respond to temperature changes.\u003c\/li\u003e\n\u003cli\u003eSystem short-cycles or runs continuously without reaching the setpoint.\u003c\/li\u003e\n\u003cli\u003eDisplay is blank, frozen, or shows erratic readings.\u003c\/li\u003e\n\u003cli\u003eHeating and cooling modes do not switch correctly.\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":63021639860595,"sku":"1058517-GEN","price":54.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048483438963,"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_a34f6cb4-0ae5-424f-9c64-790788061a16.jpg?v=1782961145","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-ptac-thermostat-for-tha15k34sta-oem-part-1058517-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}