Evaporator coil drain pan?

05-28-2010, 11:12 PM	#1
forsmant Newbie   Join Date: May 2010 Location: Omaha, NE Posts: 6	Evaporator coil drain pan? My furnace and coil are very old. When we turned on the AC we found that water was leaking down the furnace instead of down the drain line. I pulled out the drain pan to find it had rusted through in several places. Can I replace this with a plastic pan? This is a natural gas furnace.

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05-28-2010, 11:56 PM	#2
Marty S. Member   Join Date: Oct 2009 Location: Nebraska Posts: 2,287	Evaporator coil drain pan? Don't know about a plastic pan. Some of the metal replacement pans are still available and some are not. Seems like anything over 20 years old is nearly impossible to find a pan for.

05-29-2010, 06:13 AM	#3
beenthere An old Tradesmen   Join Date: Oct 2008 Location: PA Posts: 18,619	Evaporator coil drain pan? You can have a sheet metal shop fabricate a new metal pan. But you won't find a plastic pan made today that will fit up to your old coil.

05-29-2010, 11:37 AM	#4
forsmant Newbie   Join Date: May 2010 Location: Omaha, NE Posts: 6	Evaporator coil drain pan? Thank you for your replies. We are going to fabricate a pan on Sunday.

05-29-2010, 12:45 PM	#5
NitroNate Member   Join Date: May 2010 Location: San Antonio Posts: 345	Evaporator coil drain pan? i had the same problem with my secondary drain pan. i just went to lowes and picked up a roll of galvanized sheet metal, cut it to fit the bottom of the pan and silicone sealed it to the bottom and around the edges. it's been working fine ever since.

05-29-2010, 02:01 PM	#6
beenthere An old Tradesmen   Join Date: Oct 2008 Location: PA Posts: 18,619	Evaporator coil drain pan? Quote: Originally Posted by NitroNate i had the same problem with my secondary drain pan. i just went to lowes and picked up a roll of galvanized sheet metal, cut it to fit the bottom of the pan and silicone sealed it to the bottom and around the edges. it's been working fine ever since. Did you fix the problem that caused it to rust. Since a secondary pan shouldn't get water in it to rust out.

05-29-2010, 03:18 PM	#7
NitroNate Member   Join Date: May 2010 Location: San Antonio Posts: 345	Evaporator coil drain pan? Quote: Originally Posted by beenthere Did you fix the problem that caused it to rust. Since a secondary pan shouldn't get water in it to rust out. yeah the main drain was backing up and the secondary pan was installed incorrectly so all the water was sitting in the pan on one side for a long period of time, rusting it out slowly. after i fixed it i re-installed it correctly and unclogged the main drain.