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[QUOTE=mapittm;1282808]We have a 2019 3121RL.
The upstairs air trips the breaker on auto and when you put it on low or high"...
So are you saying the breaker trips when the air circulation fan kicks on, OR when the compressor kicks on.
You need to take the cover off the AC unit and spin the air circulation fan by hand to see if it is binding up. Mud doubters coukd have built nest in the fan jamming it up. Inspect it thoroughly.
If it's clean maybe oil the motor bearing so the fan spins freely.
If the fan is good, it might be the compressor going bad. An HVAC guy can test that for you.
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