{"product_id":"tempstar-ptac-thermostat-for-thb09k25spa-24v-control-ships-today","title":"Tempstar PTAC Thermostat for THB09K25SPA — 24V Control | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM PTAC thermostat assembly is the temperature control for the Tempstar THB09K25SPA packaged terminal air conditioner (PTAC) heat pump. It includes the 24V thermostat body (OEM 1058517) and the matching control knob (OEM 1058437). The thermostat senses room temperature and signals the unit's compressor, fan, and reversing valve to maintain the setpoint. A failed PTAC thermostat commonly causes a unit that will not start, runs nonstop, or ignores temperature adjustments. As a low-voltage 24V control, it is easy to replace and restores accurate comfort control to the room.\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\u003e1058517 (TSTAT PTAC), 1058437 (KNOB TSTAT PTAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePTAC Thermostat with Knob\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\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePTAC Heat Pump \/ Air Handler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTHB09K25SPA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM replacement for the Tempstar THB09K25SPA PTAC unit. The same thermostat and knob assembly is used across the Heil\/ICP THB09K25 PTAC family. Confirm your existing OEM part numbers (1058517 \/ 1058437) 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 and breaker; verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the front grille and service panel to reach the control area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photo all thermostat wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Pull the old knob, then disconnect the thermostat leads and unclip the thermostat body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new thermostat, reconnect leads per your photo, and press on the new knob.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm the unit responds correctly to setpoint changes.\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 respond to the temperature knob.\u003c\/li\u003e\n\u003cli\u003eRoom temperature drifts from the setpoint.\u003c\/li\u003e\n\u003cli\u003eCompressor short-cycles or never shuts off.\u003c\/li\u003e\n\u003cli\u003eDamaged, loose, or missing control knob.\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":63021638680947,"sku":"1058437-GEN","price":42.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048484782451,"sku":"1058437","price":54.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-thermostat-nonprogrammable-1058437_f829390d-e209-439f-bca5-eb4655dabea4.jpg?v=1782961197","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-ptac-thermostat-for-thb09k25spa-24v-control-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}