A tripping breaker means the AC draws more current than its safe limit. NEVER keep resetting and retrying — you risk burning the wiring or the compressor. A technician must inspect immediately.
See if any of these signs match your device — each one increases the likelihood of this fault.
These are the causes we encounter while repairing Breaker trips when AC starts — ranked from most to least common.
Compressor needs high inrush current; breaker is old or wrong amperage
Short circuit in the outdoor unit's wiring
Compressor motor burnt and shorted to ground = dangerous current
Damaged power cable from rodents or moisture
Capacitor blown = sudden current spike
Indoor unit wiring contacted water = short
Any of the following = a danger signal — call now and don't try to fix it yourself.
On-site diagnosis, clear pricing before any work, and a documented 6-month warranty.