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The Lennox 14J86 (103047-06) is a genuine OEM interval time delay relay operating at 24 VAC with an adjustable timing range of 6 to 600 seconds, used in Lennox HVAC systems to control the timed interval between component operations for safe and efficient cycling. When this relay malfunctions, you may notice improper timing between system cycles, components failing to de-energize on schedule, or erratic equipment behavior that can lead to premature wear. This direct OEM replacement restores accurate interval delay control to compatible Lennox heating and cooling systems.