{"product_id":"oem-lennox-high-pressure-switch-27w13","title":"OEM Lennox High Pressure Switch — 27W13","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e27W13\u003c\/strong\u003e high pressure switch guards your Lennox system against dangerously high refrigerant pressure on the discharge side of the compressor. When high-side pressure climbs past the factory setpoint — often due to a dirty condenser coil, failing condenser fan, overcharge, or restricted airflow — the \u003cstrong\u003e27W13\u003c\/strong\u003e opens the circuit and shuts down the compressor before damage occurs. It is precision-calibrated to Lennox's specified cut-out and automatic reset points.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e A faulty \u003cstrong\u003e27W13\u003c\/strong\u003e can cause repeated high-pressure lockouts, a compressor that trips off shortly after starting, intermittent no-cool conditions, or a switch that fails to reset. A shorted switch defeats overpressure protection entirely and puts the compressor at serious risk.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Lennox engineers this switch to trip at exact pressure thresholds matched to your unit's compressor and coil design. Generic replacements frequently use incorrect setpoints that cause nuisance trips or fail to protect at all. Installing the authentic OEM \u003cstrong\u003e27W13\u003c\/strong\u003e ensures proper calibration, terminal fit, and long-term reliability for your Lennox equipment.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081140519283,"sku":"LNX-27W13","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-LNX-27W13.jpg?v=1783761981","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-high-pressure-switch-27w13","provider":"National HVAC Parts","version":"1.0","type":"link"}