I have an old heat pump in my condo. The AHU is a Carrier model # 40AQ024340GM. The condensate drain was never plumbed right in the first place and the secondary pan is now rusted through, though that's easy to fix and not the real problem.
While doing some cleaning and inspection before getting the secondary pan job done I found that the primary condensate pan inside the unit is rusted way beyond saving. It's leaking and crumbles when touched.
I'm trying to see what prices and availability are for the internal pan because I've heard horror stories about HVAC companies quoting high prices for replacement pans for old units, so high they become the deciding factor in scrapping the entire coil unit or the entire system. This is a very old system but it's working well and I'd like to sort out the drain issues inexpensively to get another few years out of it before I have to spend many $ for a whole new system.
From what I've been able to gather the part number for the internal condensate pan is 28HQ4000071. Can anyone confirm if that is correct? I ask because I see many other 40AQ models listed as using it but not my model # exactly. I've found several sites selling the pan for a $ dollars so it seems I may get lucky and it will be available at a reasonable price.