{"product_id":"tempstar-ptac-thermostat-for-teb12r50spa-wall-mount-control-ships-today","title":"Tempstar PTAC Thermostat for TEB12R50SPA — Wall-Mount Control | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM PTAC thermostat assembly is the temperature control for the Tempstar TEB12R50SPA packaged terminal air conditioner. It bundles the thermostat control knob (OEM 1058437) with the PTAC thermostat body (OEM 1058517), giving you the complete user-facing control interface. The thermostat senses room temperature and signals the unit's compressor, fan, and reversing valve to cycle heating or cooling. When this control fails, the unit may run continuously, fail to start, or ignore setpoint changes entirely. The knob and thermostat ship together so technicians replace the full assembly in one visit rather than chasing intermittent contact problems.\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\u003eOEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003e1058437 (Knob), 1058517 (Thermostat)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePTAC Wall-Mount Thermostat\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\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eControl Knob + Thermostat Body\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 as a direct OEM replacement for the Tempstar TEB12R50SPA PTAC unit. The same thermostat platform is shared across related ICP \/ Tempstar \/ Heil TEB-series terminal units. Verify your existing part number (1058437 \/ 1058517) against the unit's service label 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 disconnect and verify zero voltage with a multimeter before touching any terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the PTAC front cover and the thermostat trim panel to expose the control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the thermostat wiring and knob orientation before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Pull the control knob, disconnect the thermostat leads, and unclip the thermostat body from its mounting bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new thermostat body, reconnect leads exactly per your photo, and press the new knob onto the stem.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, adjust the setpoint through heat and cool, and confirm the unit responds at each detent.\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 nonstop or short-cycles regardless of setpoint.\u003c\/li\u003e\n\u003cli\u003eKnob spins freely or feels gritty with no detents.\u003c\/li\u003e\n\u003cli\u003eNo response when switching between heat and cool.\u003c\/li\u003e\n\u003cli\u003eCracked, melted, or discolored thermostat housing.\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":63021643235699,"sku":"1058437-GEN","price":54.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048478196083,"sku":"1058437","price":71.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-thermostat-nonprogrammable-1058437_3c47fc5d-0bdd-439b-b09e-c60dd6b93554.jpg?v=1782960975","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-ptac-thermostat-for-teb12r50spa-wall-mount-control-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}