{"product_id":"carrier-py1pna042060adba-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 22#CLS 7#OPN 50\" — PY1PNA042060ADBA","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK02ZB038 for Model PY1PNA042060ADBA\u003c\/h1\u003e\u003cp\u003eThis OEM pressure switch (part number \u003cstrong\u003eHK02ZB038\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY1PNA042060ADBA\u003c\/strong\u003e packaged unit. The pressure switch proves that the inducer motor is operating and creating adequate draft before allowing the ignition sequence to proceed. When this switch fails or sticks, the control board cannot confirm safe venting conditions, and the furnace will lock out on a pressure fault — delivering no heat even though the inducer motor may be running.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Closes at 22\" W.C. | Opens at 7\" W.C. | 50\" lead wires | Single-port diaphragm-style switch | Factory-calibrated setpoint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM switch (HK02ZB038), calibrated to the exact W.C. rating required by the PY1PNA042060ADBA. Aftermarket pressure switches frequently carry ±5–10% W.C. variance, which can cause nuisance lockouts or — worse — allow ignition under marginal draft conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power before servicing. Tools needed: 1\/4\" nut driver, needle-nose pliers. Remove the rubber hose from the inlet port, disconnect the two-wire connector, and unscrew the mounting bracket. Reverse to install. Confirm hose and port are free of condensate blockage before reinstalling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty against defects. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePY1PNA042060ADBA\u003c\/strong\u003e packaged gas\/electric unit. Always verify the W.C. rating (22#CLS \/ 7#OPN) against your unit's wiring diagram or existing switch label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640974528883,"sku":"CARRIE-PY1PNA042060ADBA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640974561651,"sku":"CARRIE-PY1PNA042060ADBA-PRESSURE_SWITCH-HK02ZB038-GEN","price":50.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZB038_244181ba-f437-49bf-bf9e-9261d468becf.jpg?v=1775037047","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1pna042060adba-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}