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The Goodman B1756017L is a genuine OEM vertical condensate drain pan designed for ATUF363616AA air handlers and compatible ARUF036 and ARUF042 models. The drain pan collects condensate produced by the evaporator coil and channels it safely to the drain line. A cracked, warped, or corroded pan can cause water leaks, ceiling damage, and mold — making timely replacement an important part of preventive maintenance.
This OEM pan is molded to the exact coil footprint and drain-port locations of the original, so it seats correctly and drains as designed. Generic universal pans rarely match the coil geometry and can leave gaps that allow overflow. For a leak-free fit, the OEM pan is the safer choice.
Difficulty: Moderate. Replacement requires removing the coil access panel and possibly sliding the coil to swap the pan. A handy homeowner with basic tools can complete this, though a technician is recommended to verify proper drainage and reseal.