Home Air Guides. These certainly aren’t all the reasons of what can cause the circuit to trip the breaker. If that is not the problem then it should be the breaker. Hey guys - I have a 12,900 BTU window AC unit for my large bedroom loft. This guide is about when an AC unit trips the breaker. Air Conditioner Circuit Breaker Keeps Tripping – Reset Your Air Conditioner’s Circuit Breaker (ONCE, and ONLY once!). That will cause the air conditioner breaker trip if the problem is not repaired. The circuit breaker is designed to shut off the flow of electricity if the number of amps (unit of electrical current) exceeds the circuit breaker’s amp rating. The reason for this is that the extra pressure put on your system to push the air through the dirty filter will put way too much pressure on your electrical system. The compressor is in your air conditioner’s outdoor unit. 1. I have a multimeter, so if you need me to check anything I can do it. That is, if you have a 20-amp breaker and the AC pulls 30 amps, the breaker trips. Air Conditioning and Cooling Systems - Cord GFI (?) That may be pushing the circuit past the number of amps it was meant to handle. The unit is 120V and is the only thing plugged into the circuit (We have unplugged every other single item). This can’t happen if … One reason a compressor might overheat is the motor has bad bearings or windings. Write down the maximum wattage it uses. My General Electric Air Conditioner AJES12DCBM1 trips the cord breaker. If it doesn't mention wattage, check the SEER rating of your air conditioner and the cooling BTU number. Your window mounted air conditioner has a reset button mounted near the power cord that makes the entire air conditioner go back to factory defaults, including the air compressor. 4. It serves the same function as a regular breaker but it is so efficient that if you were to grab a live wire it would shut the power down before you felt more than half a tingle. This is done so the refrigerant can flow back into the inside air conditioning unit and absorb more heat from your home’s air. I have an electrician coming over tonight to make sure the breaker box or fuse(s) are not damaged or mis-wired If it's not electrical, I may call in an HVAC person or simply look for a new unit. It has been working perfectly until last night. Thanks for the comment. Air conditioners typically run until they reach a temperature set-point, and then they turn off and let the temperature rise again. From time to time, problems arise in air conditioning units that cause them to overload a house’s circuit breaker. You could wash the coils off, or you could have a contractor do it professionally as part of a pre-season air conditioner maintenance visit / AC tune-up. 12,000 BTU Amana brand window air conditioner; on a properly grounded circuit, no other major appliances on circuit; when compressor kicks on the house breaker trips, not the one built onto the cord. If I need 2 window air conditioners operating in the living room AND 2 in each of the kid's rooms, HANDLE it. Specific AC problems that can trip your breaker. You can use just water for this or some very mild cleaner. The tripping of the circuit happens only during the hottest parts of the day. Then wiped that down with a paper towel to mop up the wet gunk. Dirty air filter 1 Poor maintenance can cause air conditioner breaker trips. But the compressor unit ouside it tripping the breaker … Special outlet wired for 240. A breaker trips when there is too much power consumption or current at any given time. YES. Tripping Circuit Breaker or Fuse. Thanks again for the additional info. Dirty clogged filters can also cause the breaker … Check your air conditioner's wattage in its specification sheet. Now let’s look at the specific causes of an AC tripping the breaker. I just rented the house, it worked since July. Step 1 Check your air conditioner's wattage in its specification sheet. The most logical cause of your air conditioner tripping a breaker or blowing a fuse when it comes on stems from a problem with the electrical connection, the power supply, or the circuit that powers the system. Make sure you turn off the breaker first though because it can kill you if you don't. I can't see any corrosion on the power plug, but it could be that the unit is using more than 11A since it tripped a different fuse when I was testing it out. If I can get the damn behemoth downstairs I'll hose it down, too. I can only reset it when unplugged and immediately when I plug it in, it trips again. So now we need to know what’s causing your air conditioner to overheat. This is dangerous and just ignoring the problem. Sometimes, the miniature circuit breaker tripped after operating the air conditioner for some time due to over-current. But, I suppose it could just be getting old and starting to fail. that have a slow leak. However, I only got the outside of the condenser coils. If the air conditioner is the source of the tripping, it may be overheating. Based on the instruction manuals, it looks like this unit is about 7 years old. Not used for a month. Turn off all other electrical devices in the room except for the air conditioner. Dirty condenser coils. This is dangerous and just ignoring the problem. If not plugged in, it remains untriped. I just rented the house, it worked since July. This causes the AC to run longer to circulate enough cool air to achieve the temperature you want. When your air filter gets dirty, it impedes air flow, making your air conditioner work harder, drawing more amps to reach temperature set points. I'll try and clean that again this weekend from the inside. Trouble shooting this problem is more complicated as it involves not just a particular component but the electrical circuits. An overheating air conditioner is a big cause of many of our emergency repairs When the compressor overheats it causes the whole system to shut down. So we stopped trying that. 3. 20 minutes after that, 5 minutes then trips. AC worked for 5-6 years on this breaker/outlet. Window air conditioner tripping breaker. When you have those hot days and your air conditioner is under pressure to cool your home, a clogged air filter can cause a blown fuse. A weak compressor has trouble starting. On a hot summer day, a home's central air conditioner is the biggest electricity consumer, exceeding all other major appliances. I inherited the unit when I moved into the house about 4 years ago. Why is My Window Air Conditioner Tripping the Circuit Breaker? All of a sudden the air conditioner cut off and the clock (which is plugged into the other outlet) went off as well. I also have three ceiling fans that I run to keep the air circulating which hopefully doesn't make the AC unit have to work too hard. ... Any time I go on a call and compressor is over amping this is the first thing you check on any air conditioner no matter how big or small. Sometimes capacitors wear out, so they’ll need to be replaced. Never ignore an air conditioner that’s tripping the breaker. The upstairs loft is 680 square feet with vaulted ceilings. I've got it going tonight so we'll see how she does overnight. Turn off all other electrical devices in the room except for the air conditioner. Try changing the filter to see if it stops tripping the breaker. It could be that you need to install a dedicated circuit, or that something is wrong with the air conditioner itself. If your air conditioner uses a 115 volt power supply, the outlet has the correct voltage, but the breaker is tripping and causing the loss of power. Join Date: Dec 2008. Either bad breaker or AC is using more juice than breaker can handle. The excess resistance produces excess heat. It doesn't seem to trip the breaker when running the fan only, but after the compressor kicks on, it will trip after maybe 20 minutes to an hour (sometimes even less). Possible Causes for your A/C Unit Tripping the Circuit Breaker. ... That way there’s no chance of the circuit overloading and tripping the breaker or blowing a fuse. Make sure you use the input BTU and not the output BTU, if both are listed. Rating: Value: The article concisely explains potential causes of this problem and offers some basic troubleshooting tips. As to why your breaker is tripping... Moving heat from one place to the other takes energy. I've used this thing now for 3 summers without much of a problem. Press question mark to learn the rest of the keyboard shortcuts. Yes, there is a way to reset the compressor on a window mounted air conditioner. Change the filter and see if that helps. A circuit breaker usually trips because of excessive current draw from a component on the circuit. The consequence of this is that if you get a really big AC unit in a small space, you'll cool the hell out of the space, but it probably won't get to be really comfortable. Hello all Rob here with a little theory video I shot about the Arctic king air conditioner that keeps blowing or tripping the circuit breaker. Could be a fault with the air conditioner, or the circuit breaker isn't designed to work with it. I really think that was the main problem! The more it trips the more the breaker wears out. A simple test can be performed to see if other devices are powered on the same circuit breaker as your outlet. Causes of a Home Air Conditioner Kicking the Breaker. Nothing else is connected to that fuse. But if the condenser coils are covered in dust, dirt and leaves, then the coils can’t properly dissipate the heat. I would check the wiring to the plug for the AC as well, if there is any corrosion or anything like that you may not have the best contact and making a problem. Unfortunately, this is a common air conditioner-related malfunction that can nonetheless be surprisingly difficult (and even dangerous) to diagnose and deal with.. Find common window air conditioning problems and solutions in this free troubleshooting guide. The trip device is a GFCI breaker. The AC unit has a dedicated 15 amp fuse. The AC unit itself uses 10.6 amps when operating normally. Is your circuit breaker getting tripped as soon as you turn on your AC unit? It wasn't yet hot this morning so I don't think the outside temp is to blame. If I need 2 window air conditioners operating in the living room AND 2 in each of the kid's rooms, HANDLE it. Try changing the filter and cleaning the coils. Here’s how to reset it. Unit is 240. For example, if the circuit breaker is rated for 15 amps and 20 amps is flowing through the circuit, the breaker trips. Eventually I upgraded the wiring to a 12/2 and a 20A breaker, and isolated/dedicated to the unit as the long term repair. If it keeps tripping, something needs to be fixed. In Kansas we rely heavily on our air conditioners in the due to the state’s hot, humid spring and summer seasons. Handle it. that have a slow leak. Breaker trips only when the unit is plugged in. Didn't trip all night but then tripped the breaker early in the morning. A simple test can be performed to see if other devices are powered on the same circuit breaker as your outlet. I don't know. I have a LG window unit that has a trip device in the plug. Is there an easy way to fix it, or do you have to hire a professional Chandler AC repair company to tackle it? That did seem to help as the unit ran throughout the night with the fan on setting 2 of 3, and the temp at 71. When the circuit breaker sees enough energy passing through it, it stops the energy passing through it so the energy doesn't heat up your apartment's wiring enough to cause a fire. This is when the problem started. Reasons your AC trips the circuit breaker If the air conditioner is the source of the tripping, it may be overheating. When I went to check on it, I noticed that the outside unit wasn't coming on. The condenser coils are located in … Electrical breakers are a safety device designed to keep your home and appliances safe in the event of electrical overloads. If your air conditioner uses a 115 volt power supply, the outlet has the correct voltage, but the breaker is tripping and causing the loss of power. There are many reasons that your unit could be constantly tripping your breaker. We’ll go into more detail about both of these causes and what you can do to stop your air conditioner from tripping the circuit breaker. 5. If it trips again I'll lug it downstairs and outside and hose it down and give it another go. Have a contractor repair the fan. Turn off all other electrical devices in the room except for the air conditioner. Tripped Circuit Breaker Due To Overcurrent. Air Conditioner Electric Circuit Possible reasons why your air conditioner is tripping the circuit breaker From best-case to worst-case scenario, the most probable causes of your AC circuit breaker tripping include: Power surge in the area (probably due to a thunderstorm) Why Air Conditioners Trip Circuit Breakers Air Conditioner Units and Tripping Circuit Breakers: The circuit that an air conditioner is connected to may be shared with other outlets so the circuit is becoming overloaded, here is how to solve this problem. I can actually see through the condenser to the other side now. 6. Why does this window AC unit keep tripping the house breaker ? Basically since Friday we've had a heat wave come through town hitting mid to upper 90's each day. We had had problems with ants in the contacter in the past, and so I went to take off the lid and check it out. When it does try to start, it may try to pull too much electricity, which will trip your breaker. This is what I think, as well. Thread Tools Search this Thread #1 08-14-13, 09:27 AM B. bob213. Something, somewhere is wrong and it’s not an issue that’s likely to fix itself. Can an electrician diagnose what is causing the problem and make it to where stuff just runs without making that stupid "tink" sound of the breakers tripping? If it's super dirty call in a professional. My Whirlpool 10000 BTU AC keeps tripping my 15amp breaker. Handle it. DO NOT HOLD THE TEST BUTTON IN. In any case, 11.4 amps is a lot for a window air conditioner, I suspect a new, efficient one may pay its cost in electricity savings. Have you had an issue with your air conditioner lately where the circuit breaker at the main panel keeps tripping? If your air conditioning unit is tripping your circuit breaker, the first thing to remember... View Article Your air conditioner has a problem, and is drawing more than it's supposed to. A dirty air filter or dirty or damaged condenser coil could cause the … tripping on window AC - Yesterday I bought the last large window unit of the 4 stores I visited. It is 115 in my area today. Tripped breaker upon this starting. Your A/C is using too much power. So we stopped trying that. That will burn up the air conditioner. The energy comes from the electricity that comes from the circuit breaker. I've tried it in other outlets on different fuses and it still tripped. Unit is about 5-6 years old. If your breaker trips whenever you turn on the AC, don’t keep resetting the circuit. If I decide to just use the air conditioner and not the heater, is a 20 Amp circuit breaker sufficient to power the air conditioner. Write down the maximum wattage it uses. 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