Hi, I'm Brian. I'm here to answer your HVAC question to your complete satisfaction! I would like to try to help.
Does your inside blower operate and blow properly through the vents?
Are you receiving my response today? Chat mode can be flaky at times.
I am going to switch to Q/A mode and we can continue our conversation one post at a time. Please bear with me.
Sorry we got disconnected..
Yes I checked the breaker and outside disconnect switch, they seem all working..
I jumped between Y and R wire, and the outside unit came on but the vent was blowing hot air.
I do have a voltmeter, please tell me what to do.
which one do you want me to jump ? R to Y or O ?
I jumped R to Y, O and G, the outside unit did NOT run. Changed to a new t-stat, put the system in cool, the outside unit starts to run and so did the indoor blower, but got warm air from the vent! Something wrong with AC ?