Question about Heating & Cooling
Current (amps) is voltage (volts) divided by resistance (ohms) or I=v/r. Breakers "trip" when there is too much current flowing through them. This can be caused by wiring that is too small for the application or a short (or a bad breaker, but since you just replaced that).
Posted on Aug 07, 2010
Hi, you say you installed a new condenser outside, but the unit keeps tripping the breaker? I don't know what all this electrician did, but if the new condenser trips the breaker, its drawing to many amps.Its not the watts that need to be checked, its how many amps the unit draws and compare it to the breaker it has to run it. It will tell you on the data sticker max. and min. circuit size, and compare it to the circuit breaker size. It may be to small. If its max is 35 amps, make sure the breaker is 35 amps. Make sure the connections at the breaker are good and tight also. For that breaker to trip, your problem is in the electrical supply. The breaker may be weak and getting hot causing it ti trip. The electrician needed to put his amp probe on each leg of the breaker with the unit on, and see how many amps it is drawing and compare that to the units amps. Either the breaker is to small, or it is weak, or the 2- wires may be loose. This is your problem for sure, from the breaker to the disconnect box at the condenser. Even though the home is only 5 years old, that main a/c breaker could be burned or what ever, but this is the problem. Look at the amps, 30, 35, or so and compare it to the unit. If its OK, turn the breaker off and pull it out and look it over for hot spots. If you replace that breaker, your mystery will be solved. Please keep me posted and let me know the out come. I know this is your problem as the condenser is new. Please be kind when rating me as I know you will. I will be here if you need me, just get in touch by my user name below. Keep me posted. It has to be from the breaker to the new condenser, so check and replace the breaker. This will solve the problem. I keep records of all of my solutions if I need to go back on them, so get back to me. Thank you and
A/C, Heating, & Refrigeration Contractor
Posted on Aug 06, 2010
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Posted on Jan 02, 2017
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