mack1

Hi buenf,

Wozer's advice is good. Wall plugs are usually connected with several on the same feed (breaker). Number 12 wire is used to wire 110 volt circuits and it is rated for 20 amperes. Do NOT entertain the idea of using a larger breaker. Breakers are rated for the wire, so that the wires won't overheat and cause a fire.

A loose feed wire connection in the wall plug can cause the a heavy load to throw a breaker. Feel of the wall plug cover and see if it feels hot when it throws the breaker. If so, it is an indicator that the wire to the plug is loose.

If you turn off the airconditioner and then immediately turn it back on, it will throw the breaker. It will still have pressure on the high side of the pump that has to be overcome at start, thus causing overcurrent. If you turn it off, wait about 30 seconds before turning it back on.

For test purposes, you could try using another circuit (in another room) using a long extension cord. A 12 guage would be best, but you might get it to work with a 14 guage. (larger number is smaller wire) Borrow one from a neighbor or friend if you don't have one.

The problem could also be the Start Capacitor in the unit. It is used to shift the phase of the current during start for heavy load. After start, a run capactor is switched in for best run phase shift characteristics. If you changed out the capacitor yourself, it would be $10 or less. Cost a lot more if you had someone to do it.

If you find that the unit kicks out other breakers using the extension cord, it is probably a start problem in the unit. One ton units are't that expensive, so it might be time to replace it unless your like the idea of replacing the run capacitor.

Hope this helps,
Mack1