{"product_id":"tempstar-pressure-switch-set-for-tsh524gka100-hi-lo-24v-oem-ships-today","title":"Tempstar Pressure Switch Set for TSH524GKA100 — Hi \u0026 Lo 24V OEM | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM pressure switch set protects the Tempstar TSH524GKA100 by monitoring refrigerant system pressure and shutting the compressor down before damage occurs. The set includes the high-pressure switch (Part No. 1184656) and the low-pressure switch (Part No. 1184655). The high-pressure switch opens if discharge pressure climbs too high — typically from a dirty condenser coil, failed fan, or overcharge — while the low-pressure switch opens on a loss of charge or restricted flow. Each switch is wired in the 24V control circuit, so a tripped switch interrupts the contactor coil and stops the unit. Faulty or stuck switches cause nuisance lockouts, no-cool calls, or a compressor that fails to start even though everything else checks out.\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 (Hi)\u003c\/td\u003e\n\u003ctd\u003e1184656\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (Lo)\u003c\/td\u003e\n\u003ctd\u003e1184655\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHigh \u0026amp; Low Refrigerant Pressure Switch Set\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\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTSH524GKA100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eFactory-matched to the Tempstar TSH524GKA100 heat pump and the broader ICP\/Heil\/Comfortmaker outdoor lineup that uses the 1184656 high and 1184655 low pressure switches. Confirm your unit uses both a hi and lo switch before ordering the set.\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 breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the outdoor unit's electrical and refrigerant access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the 24V wiring on each switch before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — These are typically Schrader-mounted switches; back out the old switch while a service valve or recovery setup controls refrigerant loss, or replace on a recovered system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Thread on the new switch with a fresh seal, then reconnect the control wires per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a cooling cycle, and verify both switches stay closed under normal operating pressures.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompressor locks out or short-cycles with no obvious pressure fault.\u003c\/li\u003e\n\u003cli\u003eUnit won't start and the control board flashes a pressure-switch fault.\u003c\/li\u003e\n\u003cli\u003eSwitch fails a continuity test at normal operating pressure.\u003c\/li\u003e\n\u003cli\u003eRepeated nuisance high- or low-pressure trips after the system is verified good.\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":63021632160115,"sku":"1184656-GEN","price":38.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048469905779,"sku":"1184656","price":50.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-1184656_2da3d2a5-539d-4b6a-8187-2e7ebf0a2536.jpg?v=1782960703","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-pressure-switch-set-for-tsh524gka100-hi-lo-24v-oem-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}