{"product_id":"oem-lennox-time-delay-relay-16d74","title":"OEM Lennox Time Delay Relay — 16D74","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e16D74\u003c\/strong\u003e time delay relay manages timed switching within your Lennox furnace or air handler control sequence, introducing a precise delay before energizing or de-energizing components such as the compressor, blower, or auxiliary circuits. This built-in delay protects the compressor from rapid short-cycling, allows refrigerant pressures to equalize between cycles, and ensures the blower ramps in the correct order for smooth, efficient operation.\u003c\/p\u003e\u003cp\u003eWhen a time delay relay fails, you may notice the compressor short-cycling on and off, the blower starting or stopping at the wrong time, tripped breakers, or the system failing to start altogether. Contacts that are pitted, burnt, or stuck — or timing that has drifted out of spec — are common signs the relay has reached the end of its service life.\u003c\/p\u003e\u003cp\u003eChoosing an OEM Lennox \u003cstrong\u003e16D74\u003c\/strong\u003e guarantees the exact timing tolerance, contact rating, and terminal configuration your equipment was engineered for. Generic substitutes often use different delay intervals or lower-rated contacts that can compromise compressor protection and void your Lennox warranty. Install a factory-matched replacement to restore reliable, correctly sequenced operation.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081144385907,"sku":"LNX-16D74","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-relay-time-delay-LNX-16D74.jpg?v=1783763949","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-time-delay-relay-16d74","provider":"National HVAC Parts","version":"1.0","type":"link"}