{"product_id":"tempstar-low-pressure-switch-for-tch948gka100-oem-refrigerant-safety-ships-today","title":"Tempstar Low Pressure Switch for TCH948GKA100 — OEM Refrigerant Safety | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM low-pressure switch (Tempstar part number 1184655) is the factory loss-of-charge safety control for the Tempstar TCH948GKA100. Wired into the 24V control circuit, the switch monitors suction-side refrigerant pressure and opens to shut down the compressor if pressure drops too low — protecting the compressor from running on a low or lost charge, a blocked metering device, or a frozen coil. When this switch fails or sticks open, the system may short-cycle, lock out, or refuse to start even with a full charge; a switch stuck closed removes the protection entirely. Replacing it with the correct OEM control restores safe, code-compliant operation.\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 (Loss-of-Charge) Pressure Switch\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\u003eCircuit\u003c\/td\u003e\n\u003ctd\u003e24V control \/ safety\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eSuction-side low pressure cutout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTCH948GKA100\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 fit for the Tempstar TCH948GKA100 and the equivalent ICP-built Heil and Comfortmaker condensing units that use the same low-pressure safety control. Verify the part number and fitting against your existing switch 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 disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the condensing unit service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the 24V wire connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Recover or isolate refrigerant if required, disconnect the leads, and unthread the old switch from its Schrader-style port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Thread on the new low-pressure switch, reconnect the leads per your photo, and confirm the seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run the system, and verify the switch holds closed at normal operating pressure.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompressor short-cycles or locks out on a full charge\u003c\/li\u003e\n\u003cli\u003eUnit will not start despite normal suction pressure\u003c\/li\u003e\n\u003cli\u003eSwitch fails a continuity test at operating pressure\u003c\/li\u003e\n\u003cli\u003eNo low-charge protection (switch stuck closed)\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":63021650805107,"sku":"1184655-GEN","price":32.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048466628979,"sku":"1184655","price":42.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-1184655_aa50b294-4b0b-4bcd-af59-a2b99513d99e.jpg?v=1782960592","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-low-pressure-switch-for-tch948gka100-oem-refrigerant-safety-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}