Thanks for the smart? remark.

I have had people like you work on my unit in the past. Think you know it all but are not willing to show how much good information or bad advice you can give. If you know how to properly do it, then tell me.

I have simply asked for information, I am not doing the work myself.

Previous contractors have:
1. Left the main ground wire floating in the air & not connected to my air handler.
2. Installed the air handler to low, inside the emergency pan.
3. Plumbed the primary & emergency drain wrong.
4 left metal on my ductwork exposed to hot attic temperatures after sealing with latex. Some of the exposed metal runs were over six feet long & without insulation put back in place.
5. Installed a 40 amp breaker when a 50 should have been used.
6. Put in too small of an intake grill.
7 Beat one compressor with a two pound sledge when it didn't start up (another contractor found it had been miswired by the compressor beater).
8 Left the front sheet metal off of the 'A' coil
9 Left the 'A' coil hanging by the copper pipes (didn't put the screws back in mounting plate).
10 Wrong sized run capacitor
11 Left part of the return copper uninsulated
12 Ripped the primary drain pan about 4 "