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this may be an issue with the outdoor unit . Have you checked the breaker to the outdoor unit that is not running?
During this situation...is the outdoor section running?
Now please go to the furnace..locate the 2 pipes that go inside the furnace that come from the outdoor unit. One is covered in black rubber insulation...move the insulation where the pipe enters the furnace and tell me if warm, cold, dry, wet etc...
If the outdoor unit is running then the thermostat is sending the signal. However, the line you felt should be cold and sweating. The issue appears to be with the air conditioner...did the filter check out clean?
I just changed it & yes it was dirty
wait 5 minutes...the line should be cold and condensing by then. Let me know.
When fully charged with freon and operating properly both should blow out hot air out the top of the ac un it. This is heat being moved from inside to outside.
If the pipe you felt is cold..but not sweating, you either have dirty coils or low on freon.
Unfortunately freon is only available to the service tech, and the necessary gages and hoses are usually only found on a service techs truck.
It is not the type of freon availablr automobiles.