Which outcome results when lubricating oil accumulates excessively in an HVAC system evaporator?

💡 Explanation

When oil accumulates, the oil coats the evaporator's internal surfaces because oil and refrigerant separate inside the evaporator’s low-temperature environment, which reduces the system's cooling capacity. Therefore, less heat is absorbed from surrounding air, not increased motor efficiency, decreased leaks, or improved condenser performance which involve alternative mechanisms.

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