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Old hvac fix or replace ?
I have a Trane unit build 2002. It’s been working fine. I was cleaning the air handler and coil and noticed that the coil is very rusty and might be leaking slightly Based on a blue streak line that I saw, could be corrosion too. A new coil goes for around 1000k shipped. Which I can install my self but would need someone to drain and refill system.
The unit uses r22 which based on what I read production was band 2020. So can we fill this units with something Else?
Is it worth replacing coil ?
What if compressor goes bad and then need to drain again?
I can replace a lot of parts as they go bad so I sabe on labor. Only problem with this system is the draining of Freon. But if R22 starts becoming low in supply then it would be worth for me to fix this unit unless I’m able to use something else other than r22.