{"product_id":"tempstar-ptac-thermostat-for-tha09r50stb-oem-1058517-ships-today","title":"Tempstar PTAC Thermostat for THA09R50STB — OEM 1058517 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM PTAC thermostat (Tempstar part number 1058517, TSTAT PTAC X) for the Tempstar\/Heil THA09R50STB packaged terminal air conditioner. The thermostat is the command center of the PTAC unit: it reads room temperature, compares it to the setpoint, and switches the compressor, fan, and heating element on and off to maintain comfort. When this control fails, the unit may run continuously, fail to start, ignore temperature changes, or display erratic readings. Installing the correct OEM thermostat restores accurate temperature control and proper cycling.\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 (ICP \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTHA09R50STB\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\u003eDesigned as a direct-fit OEM replacement for the Tempstar\/Heil THA09R50STB PTAC unit. This thermostat control is shared across the THA-series PTAC platform built by ICP (International Comfort Products) and sold under the Tempstar, Heil, and Comfortmaker brands. Verify the part number 1058517 on your existing control 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 at the receptacle or breaker and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the front grille and decorative panel to expose the control housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wiring connections and harness positions before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the wiring connectors from the old thermostat control and release its mounting clips\/screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new OEM thermostat, secure the mounts, and reconnect each connector exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, set a cooling and heating call, and confirm the unit cycles 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\u003eUnit runs constantly or won't shut off at setpoint\u003c\/li\u003e\n\u003cli\u003ePTAC fails to start in cool or heat mode\u003c\/li\u003e\n\u003cli\u003eErratic, frozen, or blank temperature display\u003c\/li\u003e\n\u003cli\u003eRoom temperature never matches the selected setting\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":63021640647027,"sku":"1058517-GEN","price":64.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048481964403,"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_76de4d5c-bff3-4e10-98cc-44612e874747.jpg?v=1782961091","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-ptac-thermostat-for-tha09r50stb-oem-1058517-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}