{"product_id":"tempstar-ptac-thermostat-kit-for-thb09r25sta-24v-control-with-knob-ships-today","title":"Tempstar PTAC Thermostat Kit for THB09R25STA — 24V Control with Knob | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM PTAC thermostat assembly is the temperature control for the Tempstar THB09R25STA packaged terminal unit. It includes the 24V PTAC thermostat (OEM 1058517) and the matching control knob (OEM 1058437) that sets and holds your comfort setpoint. The thermostat senses room temperature and signals the unit to cycle heating or cooling. When it fails, the unit may run constantly, short-cycle, ignore the setpoint, or stop responding to the knob entirely. Replacing the thermostat with the correct factory part restores accurate, reliable control without guesswork.\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 Numbers\u003c\/td\u003e\n\u003ctd\u003e1058517 (TSTAT PTAC), 1058437 (KNOB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePTAC Thermostat with Control Knob\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (Heil \/ ICP family)\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\u003eTHB09R25STA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM 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-fit replacement for the Tempstar THB09R25STA PTAC. The thermostat and knob are commonly shared across Heil, ICP, and Comfortmaker PTAC equipment in the THB09 series. Always confirm your existing part number 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 control panel cover to expose the thermostat assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wire connections to the thermostat before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Pull the control knob, release the thermostat from its bracket, and disconnect the 24V leads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new thermostat, reconnect the 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 verify the unit responds to setpoint changes in both heat and cool.\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 continuously or never reaches the set temperature.\u003c\/li\u003e\n\u003cli\u003eKnob spins freely or no longer changes the setpoint.\u003c\/li\u003e\n\u003cli\u003eShort-cycling or erratic on\/off behavior.\u003c\/li\u003e\n\u003cli\u003eNo response to temperature adjustment at all.\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":63021638222195,"sku":"1058437-GEN","price":39.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048486420851,"sku":"1058437","price":51.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-thermostat-nonprogrammable-1058437_f6f34755-9af1-4233-8662-046ec95d17bf.jpg?v=1782961267","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-ptac-thermostat-kit-for-thb09r25sta-24v-control-with-knob-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}