{"product_id":"tempstar-high-pressure-switch-for-tca948gka100-compressor-safety-ships-today","title":"Tempstar High Pressure Switch for TCA948GKA100 — Compressor Safety | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine OEM high pressure switch (part number 1184656) is the refrigerant-side safety control for the Tempstar TCA948GKA100 condensing unit. Wired into the 24V control circuit, it continuously monitors discharge-side pressure and opens to cut power to the compressor if pressure climbs to an unsafe level — for example, from a dirty condenser coil, a failed fan motor, an overcharge, or a blocked airflow path. This prevents catastrophic compressor and line damage. A failed-open or erratic switch can lock the system out and prevent cooling, while a failed-closed switch removes critical protection. Installing the correct OEM high pressure switch restores the unit's built-in safety and reliable operation.\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 Number\u003c\/td\u003e\n\u003ctd\u003e1184656\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHigh Pressure Switch (safety control)\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\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eOpens on excessive discharge pressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTCA948GKA100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eBuilt for the Tempstar TCA948GKA100 and matching ICP-family condensers and heat pumps (Heil, Comfortmaker, Arcoaire). Confirm the switch type and refrigerant fitting against your original before installing.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photo the control wiring and switch location before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the 24V leads and remove the old switch from its refrigerant port (recover refrigerant if the port is not self-sealing).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Thread on the new switch, reconnect the control leads per your photo, and check for leaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify the system runs and the safety closes the circuit under normal pressure.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSystem locks out or will not run on a cooling call.\u003c\/li\u003e\n\u003cli\u003eCompressor trips off shortly after starting.\u003c\/li\u003e\n\u003cli\u003eSwitch fails to open during a genuine high-pressure event.\u003c\/li\u003e\n\u003cli\u003eContinuity testing shows the switch stuck open or stuck closed.\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":63021660209523,"sku":"1184656-GEN","price":34.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048450605427,"sku":"1184656","price":45.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-1184656_284f2940-6a88-488b-af76-5336fa72960f.jpg?v=1782960065","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-high-pressure-switch-for-tca948gka100-compressor-safety-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}