re: Outside AC Unit question for the know it alls

Get a few quotes for a new complete system on the r410a refrigerant.

I wouldn't piecemeal the system one part at a time if it were me. You'll have a new compressor and coil and then a few years later the air handler will give out.

While you could just stay on the old r22 and replace the compressor only you will be eaten alive with repair costs and freon on the old refrigerant.

Newer quality systems can come with 10 year warranties.

You'll likely get some savings on your utilities also with the new equipment.

I'm not a fan of the 2 stage compressors but you can couple a single stage compressor with a variable speed furnace which works well.