{"product_id":"tempstar-low-pressure-switch-for-tch624gka100-24v-refrigerant-safety-ships-today","title":"Tempstar Low Pressure Switch for TCH624GKA100 — 24V Refrigerant Safety | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM low-pressure switch (part number 1184655) is the refrigerant-side safety control for the Tempstar TCH624GKA100. Wired in series with the 24V control circuit, it continuously monitors suction-line pressure and opens the circuit to shut the compressor down if pressure drops below a safe threshold — protecting against a loss of charge, a clogged metering device, or frozen evaporator conditions. A low-pressure switch that fails open will prevent the system from running, while one that sticks closed removes critical compressor protection. Installing a fresh OEM switch restores proper low-charge protection and reliable cooling\/heat-pump 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 Pressure Switch (Refrigerant Safety Cutout)\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\u003eCircuit Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eOpens 24V control circuit on low suction pressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned for the Tempstar TCH624GKA100 heat pump and used across ICP-family outdoor units (Heil, Comfortmaker, Tempstar) sharing the same refrigerant-circuit safety design. Verify the connection style and refrigerant type of your existing 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 service panel to reach the refrigerant lines and control wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the wiring and switch location before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the two control leads, then unthread the switch from its Schrader-style port (most ports are self-sealing; recover charge if required).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Thread in the new switch, snug to spec, and reconnect the control leads per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm the system starts and the switch holds the circuit closed under normal 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 will not start even with a proper refrigerant charge.\u003c\/li\u003e\n\u003cli\u003eSystem short-cycles or nuisance-trips on the low-pressure circuit.\u003c\/li\u003e\n\u003cli\u003eSwitch fails to open during an actual low-charge condition.\u003c\/li\u003e\n\u003cli\u003eCorroded terminals or a cracked switch body.\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":63021654278515,"sku":"1184655-GEN","price":29.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048465711475,"sku":"1184655","price":38.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-1184655.jpg?v=1782960562","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-low-pressure-switch-for-tch624gka100-24v-refrigerant-safety-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}