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Goodman large drain pan assembly, rectangular metal tray with raised edges

Goodman

Goodman 3770028 Large Drain Pan Assembly

SKU CH-9TJW-EE9H9

Large HVAC drain pan assembly collects condensate from oversized cooling units

  • Direct replacement for Goodman HVAC units
  • Large drain pan handles heavy condensation loads
  • Genuine Goodman part number 3770028 ensures fit
  • Brand-new condition, never installed or used
  • First listed by manufacturer April 29, 2023

Goodman 3770028 Large Drain Pan Assembly

The Goodman 3770028 is a large drain pan assembly designed for heating, ventilation and air conditioning systems in recreational vehicles. It collects condensate produced during cooling cycles and directs it safely away from internal components. This part is intended for RV owners and service technicians who need a direct replacement for a damaged or corroded original pan.

Replaces a cracked or leaking factory drain pan

Install this assembly when the existing pan shows visible cracks, persistent leaks or heavy corrosion that cannot be cleaned. The jump is worth it if water damage has begun to affect surrounding insulation, wiring or flooring. It restores proper drainage without requiring modification of the surrounding HVAC housing or ductwork.

Verify the pan matches your unit's make and model

Before ordering, confirm that your RV's air handler or furnace specifies part number 3770028 in its service documentation. Check the mounting hole pattern and outlet orientation against the old pan to ensure alignment. Ensure the condensate drain line connects cleanly to the new assembly's outlet without adapters.

Highlights

  • Direct replacement for Goodman HVAC units
  • Large drain pan handles heavy condensation loads
  • Genuine Goodman part number 3770028 ensures fit
  • Brand-new condition, never installed or used
  • First listed by manufacturer April 29, 2023

Specifications

BrandGOODMAN

Questions about this item

What furnace or air-handler cabinet width does the Goodman 3770028 large drain pan fit?

The pan is designed for Goodman cabinets that accept the 3770028 assembly; verify your unit’s model number against the manufacturer’s compatibility list before ordering.

Which screws or clips secure the Goodman 3770028 drain pan during installation, and what is the common mistake?

Use the original cabinet screws and the pan’s built-in locating tabs; the frequent error is omitting the tabs, which lets the pan shift and leak.

When should the Goodman 3770028 drain pan be inspected or replaced?

Inspect annually for cracks, corrosion or algae buildup; replace immediately if water bypasses the pan or if the pan shows visible damage.

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