OEM Goodman Horizontal Drain Pan for ASPF313716DA — B1756028L

The Goodman B1756028L Horizontal Drain Pan is the genuine OEM condensate pan for the ASPF313716DA air handler installed in a horizontal (attic or crawlspace) configuration. In horizontal mounts, the auxiliary pan is essential — it captures condensate along the length of the coil and routes it to the drain so water never spills onto a ceiling or subfloor. Install a fresh OEM pan whenever the original shows rust, cracks, or a clogged, deformed drain channel.

Specifications

• OEM Part Number: B1756028L
• Orientation: Horizontal (attic / crawlspace mount)
• Brand: Goodman (genuine OEM)
• Equipment Type: Air Handler
• Primary Fit: ASPF313716DA
• Function: Horizontal condensate collection pan

OEM vs. Generic

Horizontal pans are especially fit-sensitive because the drain relies on a precise pitch. The OEM B1756028L reproduces the factory length, depth, and drain-port placement so condensate runs out cleanly. Universal pans frequently sit flat or misalign the outlet, causing pooling, overflow, and float-switch shutdowns. For horizontal installs, OEM is strongly recommended.

Installation Difficulty

Moderate (3/5). Disconnect power, clear standing water, and slide the coil to reach the pan. Replace the pan, confirm correct slope toward the drain, reconnect and test the condensate line, then verify the float switch. Plan about 45–60 minutes; attic access can add time.