{"product_id":"carrier-hh18ha504-for-58sta045","title":"Carrier Switch Limit Ls1 HH18HA504 for Model 58STA045","description":"\u003cp\u003eThis is the exact Carrier part \u003cb\u003eHH18HA504\u003c\/b\u003e installed at the factory in the \u003cb\u003e58STA045\u003c\/b\u003e — not a will-fit substitute. Fitment guaranteed — free returns if it doesn't fit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemp\u003c\/td\u003e\n\u003ctd\u003eL220F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetpoint\u003c\/td\u003e\n\u003ctd\u003e180-220F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReset\u003c\/td\u003e\n\u003ctd\u003eauto\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAction\u003c\/td\u003e\n\u003ctd\u003eopen-on-rise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXref\u003c\/td\u003e\n\u003ctd\u003eL220F-40 \/ 1NT01L-4575\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Part Number\u003c\/td\u003e\n\u003ctd\u003eHH18HA504\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eCarrier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew — genuine OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eSymptoms of a failing limit switch\u003c\/h3\u003e\u003cp\u003eWatch for: Error codes tracing to this component, the system short-cycles or locks out, performance that degrades under load. Catching it early protects the components around it.\u003c\/p\u003e\u003ch3\u003eReplacement guide\u003c\/h3\u003e\u003cp\u003eKill power before servicing and photograph the wiring and mounting. Swap the part, torque fasteners evenly, and route wires away from hot or moving surfaces. Run a complete cycle and verify normal operation before closing the panel.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cb\u003eIs this the exact OEM part for my 58STA045?\u003c\/b\u003e Yes — verified factory fitment for that model.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eNot sure of your model?\u003c\/b\u003e Chat with Mike with the number from your unit's nameplate and we'll confirm before you order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":63838515888499,"sku":"CARRIE-58STA045-HH18HA504","price":44.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-hh18ha504-for-58sta045","provider":"National HVAC Parts","version":"1.0","type":"link"}