Lifespan of Filter-Driers in Home AC units

[niceman]

Sorry, but any warranty is long gone, you say you didn't need anyone to maintain this unit, you could clean it yourself, l did service and maintenance for over 40 years on refrig and a/c, part of ALL maintenance schedules was to check for any corrosion, so the customer would not end up in your situation. Have seen and replaced plenty of rusty driers, personally l don't see you getting anything out of Sporlan

[beiland]

Sorry, but any warranty is long gone, you say you didn't need anyone to maintain this unit, you could clean it yourself, l did service and maintenance for over 40 years on refrig and a/c, part of ALL maintenance schedules was to check for any corrosion, so the customer would not end up in your situation. Have seen and replaced plenty of rusty driers, personally l don't see you getting anything out of Sporlan

Regardless of whether employing a maintenance situation, do you really think we should resign ourselves to having these outside home AC units fail in a period of 5 years due to rusty parts?

I believe from what I see with how the rust has TOTALLY consumed this filter-drier (totally under even the 'good paint' you see in my photos), that it might well have been very difficult for the service/inspection person to have determined that this unit was failing. The rust was all happening 'underthe cover' of what appeared to be good power/paint job.

The strange thing is you don't see any 'bubbles of corrosion' under that 'good paint' remaining on the other half of the unit. But I can tell it is fully corroded down there, while not leaving tell-tale signs on the surface.

But then I guess your x-ray vision would have detected that....

Have seen and replaced plenty of rusty driers

Can you give some details,...brands, age, special circumstances, etc?