{"product_id":"tempstar-low-pressure-switch-for-tch936gka200-refrigerant-safety-ships-today","title":"Tempstar Low Pressure Switch for TCH936GKA200 — Refrigerant Safety | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Tempstar OEM low pressure switch (part #1184655) is the refrigerant-side safety control for the TCH936GKA200 condensing unit. Wired in series with the compressor control circuit, it monitors suction-line pressure and opens the circuit to shut down the compressor if pressure drops below a safe threshold — protecting against a low-charge condition, a frozen evaporator, or a loss-of-charge event. When the switch fails or is stuck open, the compressor will not run or will short-cycle; a switch stuck closed removes the protection and risks compressor damage. Symptoms include a unit that won't cool, repeated lockouts, or a compressor that trips off shortly after starting.\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\u003e1184655\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eLow Pressure Switch (auto-reset)\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\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eLoss-of-charge \/ low-pressure compressor cutout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit\u003c\/td\u003e\n\u003ctd\u003e24V control circuit, normally closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eThis is the factory-specified low pressure switch for the Tempstar TCH936GKA200 and matches the refrigerant safety control used across compatible ICP, Heil, and Comfortmaker condensing units. Verify the connection fitting and electrical terminal style against your original switch before installing.\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 outdoor disconnect and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the condenser electrical access panel to reach the control wiring and refrigerant port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the switch wiring and mounting port before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the leads and unthread the switch from its Schrader-style port (most use a self-sealing fitting, so no recovery is needed).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Thread the new switch onto the port and reconnect the leads per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm the compressor starts and runs without nuisance trips.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompressor won't start even with a proper refrigerant charge\u003c\/li\u003e\n\u003cli\u003eRepeated low-pressure lockouts or short-cycling\u003c\/li\u003e\n\u003cli\u003eSwitch fails a continuity test at normal operating pressure\u003c\/li\u003e\n\u003cli\u003eUnit cools poorly or trips off shortly after starting\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":63021650936179,"sku":"1184655-GEN","price":34.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048466563443,"sku":"1184655","price":44.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-1184655_43398e0f-a1b1-4430-a428-78b079645262.jpg?v=1782960590","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-low-pressure-switch-for-tch936gka200-refrigerant-safety-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}