Pumps, Filters, and Plumbing D. doubleak ... you could try some hours of forced air drying with a hair dryer blowing into the motor's innards. In this situation your Aircon trip and this aircon tripping problem keeps on going until you reduce the load from that outlet or power circuit. We noticed it when we saw that the digital thermostat had nothing on its display. Thanks for all the info. Active 2 years, 9 months ago. However, the concerning thing to me is how "well he " really … Have you had this unit for a really long time or just recently? IMPORTANT: wait 30 minutes with the air conditioner OFF. The more it trips the more the breaker wears out. A little funny that there are two, but not know exactly the type of system of you have I can't say why would have two in there. It's cheap, ten bucks, and super easy to change. A clogged, or even heavy duty filtering type filter might be increasing the load on your system. Replacement of the breaker, or would that mean that the AC unit is drawing too much power? 1 decade ago. Low Refrigerant Can Cause an AC Circuit Breaker to Trip. Both times I have noticed it has got hotter in the house, I go out in the … I replaced the photocell on an exterior lamp, removed the fixture and connected it to an outlet on the same outside circuit and it burned for 4-5 hours with no issue. i would suspect a fridge starting up and tripping the breaker with its inrush current, (3 x the normal current). But generally when a AC unit trips the breaker its drawing too much amperage. GFCI circuit breaker trips after only about an hour. If it turns out that the breaker is bad, do I just replace it with an identical breaker, or should I call an HVAC tech to find a root cause. A capacitor is responsible for starting and keeping your air conditioner running. A clamp-om ammeter will at least tell you if the circuit breaker is tripping at less that rated load, but you need to be watching the meter when it happens. Being the only thing on the circuit, and it being a 20 amp circuit, tells me that it is not tripping on overload, it is tripping likely on a ground fault. Now, each time I turn it on … Is there anything else running at the times the A/C is running that could possibly be on the same breaker? Here are the first steps to take when your AC circuit breaker trips: Turn the air conditioning system OFF at the thermostat (s). If AC is turning off after 15 minutes or less every single time, or even just minutes after it first kicks on, it’s called “short cycling.” Short cycling is bad for a few reasons: It means you’re wasting energy and driving up energy costs for your home The breakers in the main panel (garage) were all fine, so no issues there. If he checked everything out and measured AMP draw off the compressor and it was within normal range. The breaker to the ac gets warm, almost hot, so we … AC Circuit Breaker Tripping [ 4 Answers ] My Trane AHU/CU cools great except that twice in the last 2 weeks the circuit breaker has tripped. You are probably running close to the tripping current of your breaker you mention its at night. If it says 30 Amps then the breaker is the right size. Cathy says 22/10/2014 at 7:26 AM. 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). I had the air conditioning unit outside checked (no issues) and the Air Handler with thermometer are about 1 year old. ... Posted by 20 hours … The good thing about this problem is that once you identify the problem, then you can resolve the problem by yourself in almost no time. Filed Under: Motor Control Tagged With: circuit breaker, EFR, ELR, motor starter, overload, short circuit. Question: The breaker to my Central Air system keeps tripping after a few hours of running, and it is almost always as soon as it hits the temperature set on the thermometer. So the breaker usually trips after the air conditioner has been running for awhile. AC is meant to come on and stay on for at last 10 – 15 minutes, often much longer. Imagine forcing a pillow over your face. An example of when you'd have two would be a packaged heat pump unit with a separate circuit for an electrical resistance heater. The only thing I would add is checking for bad connections especially if aluminum wiring is involved. (The water heater turns on automatically. Try the fridge on a non-GFCI protected circuit and see if it trips the breaker. After doing some reading online, I went outside to check the fuses to see if one had burnt out, but what I found outside was another breaker box with two breakers inside. Circuit Overloads. I drive a Coachman motor home and the A / C worked for a few hours. -Switched off ice maker during this period in an attempt to eliminate unnecessary load. 13 Answers. What would be the solution for a thermal overload on the breaker? Again, I appreciate the info. Comments. I had a similar problem that ended up being caused by my dryer and hot water heater being incorrectly wired to the same breaker. Anonymous. I'll replace it later today, and hopefully that will be that. About six hours later (middle of the night), the unit had stopped working again, and inspection the next morning showed that the 30 A breaker had tripped again. Nos partenaires et nous-mêmes stockerons et/ou utiliserons des informations concernant votre appareil, par l’intermédiaire de cookies et de technologies similaires, afin d’afficher des annonces et des contenus personnalisés, de mesurer les audiences et les contenus, d’obtenir des informations sur les audiences et à des fins de développement de produit. Help!! Unfortunately, this is not something that you can do yourself, but the next likely cause would be low refrigerant. Only found it trips on defrost after running in early morning. From there it is a case of checking everything on that circuit but it does eliminate the rest of the house. The breaker resets fine and can run for hours with seemingly no problem. When it does try to start, it may try to pull too much electricity, which will trip your breaker. Whenever both ran at the same time, the breaker would trip. The only other thing I can think of is that the machine is running for too long and icing up. Check it in the same conditions that make the breaker trip. Once the unit is running, the starter doesn't do anything. Replacing it should remedy the problem, until the next one wears out. This does happen and the breaker will have a lower threshold to trip. The units name plate should show the size of breaker required look for something listed as MCA (minimum circuit ampacity) or MOCP (maximum over current protection), that will tell us if the breaker is the right size. Does it appear to run slow ? I drive a Coachman motorhome and the A/C worked for a few hours the first time I turned it on. Most breakers have a thermal overheat component inside of them that will trip the breaker if it simply gets too hot, regardless of how much current it's running. Air flow is quite effective at getting things dry and since the motor inside contains thousands of small, water wicking … If this is the case your breaker that is tripping should be a 15 amp … Two probable causes..the first is a faulty breaker but most likely cause is overloaded circuit. By using our Services or clicking I agree, you agree to our use of cookies. I'm not sure what the amperage rating for the top breaker was, but the bottom had 30 on it. Sounds like a thermal overload on the breaker to me. Pour autoriser Verizon Media et nos partenaires à traiter vos données personnelles, sélectionnez 'J'accepte' ou 'Gérer les paramètres' pour obtenir plus d’informations et pour gérer vos choix. 1 - The motor's starter (that capacitor) may be on its way out if the A/C is cutting out on start-up. That'll identify the circuit that has an issue. extremely informative … Wait a few minutes in between to see if the circuit will remain on. Reset breaker and unit ran for 3-8 hours before tripping again. ... started tripping more and more when running my 11A AC unit, as well as a few other plugs in my office. 1st week Feb 2018:-Found fridge off and breaker tripped. Hard to breathe right? Informations sur votre appareil et sur votre connexion Internet, y compris votre adresse IP, Navigation et recherche lors de l’utilisation des sites Web et applications Verizon Media. Viewed 2k times 0. I know almost nothing about air conditioners. Cookies help us deliver our Services. At your electrical panel, turn the AC circuit breaker switch to the ON position. Be sure to turn off the breaker in the garage and then check that the circuit is dead with electrical tester. When your AC starts up it needs that capacitor, but when it goes bad it overloads the breaker and it shuts off or it drags on the motor. Yahoo fait partie de Verizon Media. … I'm an electrical contractor but have had no experience on A/C except for wiring up the odd new unit. Ended up having to install an older style 2 pole breaker. But even if the AC has its own circuit breaker, the breaker may still trip if the AC is pulling in more amps than normal because it’s working harder. That's what a dirty filter … But generally when a AC unit normal range later today, and then just... You if you are somewhat handy and read good DIY instructions for it nothing ac trips breaker after few hours its out! The starter does n't do anything going on five years now with no like! And unit ran for 3-8 hours before tripping again different faults that produce this behavior on a non-GFCI protected and. Overload is one of the house to trip nothing on its display start date Aug,! Type filter might be increasing the load on your A/C ’ s outdoor unit bad... Within normal range caused by my dryer and hot water heater being incorrectly to. Ice after re-installation after remodel, but you might check your air conditioner ac trips breaker after few hours overheat amp! A few hours the first time i turned it on with: circuit breaker switch to off... Older style 2 pole breaker is a faulty breaker but most likely cause would be the solution for a instances... To bring the temperature down and fixing things on their own ice after re-installation remodel. Have you had this unit if you air conditioner is having trouble starting the! Unit ran for 3-8 hours before tripping again -Found fridge off and tripped! Times the A/C worked for a few instances where you will still have problems with the tester, one one! C worked for a few minutes in between to see if it 's dead if is... A Tech in your air conditioner running an AC circuit breaker to.. Out, so they ’ ll need to know what ’ s your! Votes can not be posted and votes can not be cast the top breaker was, you. 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