Goodman Furnace: Drain pan and freeze protection
Drain pan and freeze protection on a Goodman furnace: If the furnace sits over a conditioned space, use a drain pan that covers the full area under the furnace and any air conditioning coil. Keep the drain trap and vent piping from freezing, and insulate vent piping that sees freezing temperatures or the outdoors with 1/2 in. closed-cell foam.
Applies to: Furnaces installed above conditioned space or exposed to freezing
How to fix drain pan and freeze protection: step by step
- Install a drain pan under the full furnace footprint when installed over conditioned space.
- Insulate vent piping exposed to temperatures below 35 F for long periods with 1/2 in. closed-cell foam.
- Insulate vent piping run outdoors or in unheated areas past the listed terminations.
- Check piping for leaks before insulating.
If the unit shows an error code, look it up: Goodman Furnace codes
Source: Goodman GMVC96 service and troubleshooting manual, pp. 10, 13. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.