{"product_id":"tempstar-ptac-thermostat-for-thb09r50spa-manual-control-with-knob-ships-today","title":"Tempstar PTAC Thermostat for THB09R50SPA — Manual Control with Knob | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is the genuine OEM manual PTAC thermostat assembly for the Tempstar THB09R50SPA packaged terminal unit. The kit pairs the thermostat body (OEM 1058517, TSTAT PTAC X) with its matching control knob (OEM 1058437, KNOB TSTAT PTAC X). As the control heart of the PTAC, this thermostat reads room temperature and switches the compressor, fan, and heat to hold your setpoint. A failed thermostat shows up as constant running, a unit that won't start, short-cycling, or a dial that no longer changes anything. Installing the correct OEM thermostat restores precise, dependable temperature control.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\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 (thermostat), 1058437 (knob)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePTAC Manual Thermostat\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\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\u003ePackaged Terminal Air Conditioner\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\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eA direct-fit replacement for the Tempstar THB09R50SPA PTAC chassis. The 1058517 thermostat and 1058437 knob are shared across matching ICP, Heil, and Comfortmaker PTAC units of this series. Confirm your old part numbers before ordering.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the front grille and control-area service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every thermostat wire connection before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Pull the knob, release the mounting clip, and disconnect the sensing bulb and wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new thermostat, clip the sensing bulb in its original location, reconnect 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 response across cooling and heating modes.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompressor runs continuously or never engages\u003c\/li\u003e\n\u003cli\u003eKnob has no effect on temperature\u003c\/li\u003e\n\u003cli\u003eErratic short-cycling\u003c\/li\u003e\n\u003cli\u003eDamaged or loose control knob\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\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":63021637992819,"sku":"1058437-GEN","price":58.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048485306739,"sku":"1058437","price":75.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-thermostat-nonprogrammable-1058437_be072ceb-1c16-4b61-9992-a21b786db36a.jpg?v=1782961218","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-ptac-thermostat-for-thb09r50spa-manual-control-with-knob-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}