Air Compressor Runs For A Few Seconds Then Trips Breaker
Air Compressor Runs For A Few Seconds Then Trips BreakerFurthermore, we will address this next. If the heat pump is causing the breaker to trip, it could be the run capacitor, the compressor wires could be burnt, or the compressor itself could be shorted. When I left the boat about a half hour ago, both units will only stay on for 20 seconds or so… I turn it on, the 888 comes up nice and bright, then the temperature is shown, the blower comes on, then the compressor turns on. When it runs it fills up with air once and trips the breaker. Have 2001 Itasca Horizon with heat pump/AC model 6535. Unplug the appliances plugged into the outlet. I plan to buy a 220v air compressor that is 20 amp. I recently purchased a used Devilbiss air compressor. Is it worth replacing compressor on AC unit? The compressor is an expensive item to replace. After 10-15 minutes has elapsed shut off water and put the lid securely back on. I’ve narrowed it down to something in the motor itself, as I can hear a click inside when the “reset period” ends. At 81 dBA, the oil free pump brings less noise to your work environment and. I put an Amp probe on the 115 line feeding the compressor and its drawing over 20 amps for a few seconds than trips the breaker. If the compressor won't start with air in tank, replace the check valve. Refrigerator Keeps Tripping Breaker: Troubleshooting Guide. There is a capacitor in the compressor circuit to help the compressor motor to start and if the capacitor has failed then the compressor won’t run. I believe what is happening is that the compressor turns on, then blows the circuit breaker and shuts off, leaving the air handler running. Hello, I have a craftsman 921-16476 / 150 psi/ 60 gallon. Why Does My Electric Motor Humm And Not Start?. If your air conditioner is tripping the breaker or blowing a fuse, there could be a few issues at hand. I had a repair man come out a month or 2 ago and he replaced the blower motor and capacitor. This is the same concept as your dirty air filter. It will run for 5 seconds ( I timed it ) and then instead of tripping the motor breaker, it trips the house circuit breaker. Compressor blows breaker or fuse while running. the engine sounds fine when it's running. The tip is do not just keep resetting the circuit breaker and turning the system back on. Does the motor start for a few seconds and then trip the breaker? If so the run capacitor is most likely bad. After a lot of reading and trips to the air pump after wheeling I decided I would stop saving my pennies for a $500 ARB Twin Air Compressor and look for alternatives. We have a couple of 200HP star/delta open transition screw air compressors and . A large enough flywheel, like I have may be the solution. The trained HVAC expert will perform the following tasks to test and repair your faulty compressor: Check the compressor for continuity. About Ac Off After Few Compressor A Shuts Seconds. The problem i have is not all the time but occasionaly this will trip the main hundred amp breaker. This Air Compressor replaces a DeWALT Model D55166 6-Gallon Heavy-Duty Wheeled Portable Compressor that is Oil Lubed. -Electric-Air-Compressor-C302H/206695048 Kobalt Sure, you can run high demand tools for a few seconds before you will have to wait for the air pressure to refresh to working levels but make sure this will satisfy your needs. But, an 18 cubic feet freezer will start up amp draw between 6 and 9 amps and run at 2 to 3 amps. This means you don't need to have a power socket handy to plug it into - you can take it anywhere! It's also a handy air compressor portable enough to keep in the car and use as a tire inflator. A heat pump condenser contains the compressor. Front A/C - Starts, Runs, then Shuts Off. Ran several cycles with dryer empty and everything seemed ok. The air conditioning system creates a humming sound and tries to start but cannot. If breaker still trips, replace the breaker; they go bad eventually. Fabricator This topic contains 1 message(s) - Last author Dick 5 HP 110 Volt DeVilbiss Air Compressor Model DF5030, Pump Ac-0121 - by: Dick. If it works, take a closer look at your breaker. Why is your AC tripping the circuit breaker? Many issues can be at play, but the primary 3 reasons include: An overloaded circuit A grounded compressor A faulty breaker. The problem is that the air compressor cycles on and off. If it continues to trip, contact a professional. Here are the 4 steps needed to reset your Lennox furnace, Find your electrical panel and switch the breaker that controls your furnace, and have it up and running again in seconds. Is the pump head unloaded when you try to start 2. So, the breaker usually trips after the air conditioner has been running for a while. Freezer Troubleshooting: A Compressor Starts Then Kicks Off. My outdoor compressor keeps tripping the circuit …. Let's check the next section for further troubleshoot. Air Conditioner Turns On and Off Repeatedly. The most common causes of this problem are a bad compressor that is starting to draw too many amps on start up and/or while running, you could also have a bad start or run capacitor on the AC unit. This also had a 15A cricuit breaker. Before that it was doing light duty work. Run a garden hose over the compressor for 10-15 minutes straight to cool it off. About After Off Ac Few Shuts A Seconds Compressor. Coleman RV Air Conditioner Compressor Trips Breaker. Some air compressor PRV doesn’t activate when it’s supposed to. The system keeps tripping the breaker in the circuit box; Apply the solution to the coils, and let it soak a few seconds to a few minutes. It's acting like the motor is underpowered - it pumps up to about 95 psi ok, but then the motor stall. A circuit breaker is typically located in closets, basements, or crawl spaces. Don't waste money on the cold start valve or capacitor. If I turn the breaker on and off a few times the compressor will stay on and. Call an electrical contractor (go to HomeAdvisor). How To Reset A Frigidaire Refrigerator. CFM is one of the vital components of measuring an air compressor. And then we have the Forced Air Compressor system. This can be caused by trash jamming it or blocking the air intake. The type of circuit breaker, which operates in air (where air-blast as an arc quenching medium) at atmospheric pressure, is known to be an Air Circuit Breaker. "AC panel turns on all lights for a few seconds, beeps and shuts off. With my Thomas compressor and a 1/2" drive, 350 ft. I opened the back cardboard cover and cleaned off the back coils which were not as dusty. Compressor start winding is damaged • Check compressor motor winding resistance Yellow “ALERT” Flash Code 7 Open Run Circuit Current only in start circuit 1. a customer has a 5 ton rheem (corsaire) unit. 3 amps then referring to Article 240. 1995 T600 ac blower kicks on, then like a relay kicks out. It all runs for 20 seconds or so, then BAM, it turns off completley. High compression ratios are the result of either lower than normal suction pressures or higher than normal discharge pressures. | DIY Home The condenser unit never shuts off. Motor will run thru complete cycle with that wire off breaker. When I picked it up the air conditioner compressor will turn on and then turn off after a few seconds. If the outside condenser/compressor unit is a lost cause, resist the temptation to only replace that unit. Compressor floor mounting loose. The compressor is the part in your outdoor unit that pumps the refrigerant through your system. a bad pressure switch on the compressor. What is happening is the compressor is trying to start, but because the compressor motor is locked it tries to start for a few seconds and then because of the high amperage being drawn goes off on internal overload. If any of those conditions exist, the circuit breaker for the condensing unit will trip when the compressor tries to start. Rated surge power of Sunny Island is 11 kW for 3 seconds. If power failure occurs, turn the air conditioner OFF. Repeated breaker trips should never be simply reset and ignored. The roof top AC on my 2017 travel trailer trips the breaker after just the compressor runs for a few minutes. Unit hose air leak (bubbles blowing out bypass hose. The capacitor starts the compressor, and if it has trouble starting, that could mean the capacitor is …. Plug back the appliances, watch to see if it trips. We have helpful sales team members. If this is the problem, then a professional can possibly install a hard start kit to help the heat pump start without tripping the breaker. Taking only about 25 seconds to bring the tank from 100 PSI to 150 …. I can hear The compressor running one minute and then it just shuts off. It sounds like the compressor starts running for about 2 seconds and then shuts down. AFCI breakers that are not compatible with multi-wire circuits. The disconnect box is found near the outdoor unit. Since then, my pump trips the breaker after running for 3-5 seconds. Likewise, people ask, why is my compressor tripping the breaker? then it's pretty much certain that it's the air compressor unloader . Drain the compressor tank and then close the drain. One 12 gauge 100' cord will most likely give you enough power to run the compressor (do not use 14 or 16 gauge). I'm able to push the "reset" on the "Breaker" ("Overload button", per. New Raypak 5450 heat pumpworked for. Turns out the pressure valve was faulty causing the motor to stall, hence operation of the PD. Or perhaps the power cord is loosely attached. Grab a voltmeter - low or no voltage may be the problem. The harbor freight air compressor, which I frequently use for cleaning, had my old breaker torn out. Air continues to blow inside and cooling well. Short cycling, when the compressor constantly shuts on and off, is one of the most common air conditioning problems. I am posting pics of the specs, etc. Don’t use a fuse with a higher amperage rating than the circuit wiring. I think the unit is somewhat over sized for the house. the problem is the compressor starts for a while then it stops resulting start capacitor overheat. Will a bad compressor trip a breaker?. Condenser coils are refrigerant-filled tubes running through your air conditioner’s outside unit. smith ser k56a67823, serial # on compressor is 2102124685. This breaker blows when we try to start the compressor. This samsung fridge turns on and runs fine then trips the circuit breaker after a few hours of running. Search: Husky Air Compressor Internal Circuit Breaker. AC panel turns on all lights for a few seconds, b – Q&A. Sizing A Circuit Breaker For An Air Compressor If your air compressor is not fitted with the correct circuit breaker, it will be subject to random tripping while you are trying to get a job done. Air compressor circuit breaker size?. When my shop was wired, the electrician used 8 gauge wire and 50 amp breaker where I told him my air compressor would be. Home air conditioner starts but shuts within a few seconds with the inside fan running when the outside unit stops. During this, I slipped my finger under the insulation of the output pipe and for the 5 seconds the compressor was running, I could feel the pipe get cooler, so while the compressor was active, it. Electrical Power Machinery, AC & DC Hand and Power Tools & Sharpening - Campbell Hausfeld air compressor. Dirty air filter; Dirty outside unit; Issue with the circuit breaker; Motor has shorted; Compressor has trouble starting; Compressor is grounded. I have a Trane X80 furnace with a Nest gen 3 thermostat. When I turn it on, the motor turns slowly for a few seconds and then the breaker trips. Most air conditioning units are equipped with a reset button. what may be possible cause please help me out. When your air conditioner’s filter is dirty, filthy and clogged, air flow can’t go through the filter and ice will begin to accumulate on it. I came to the boat today and it was hot, well over 100 degrees inside and all three units were running showing displays with 100+ degrees. If you’re shopping for a portable air compressor, chances are you want it to be portable. A few other notes I couldnt use a …. 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. using an extension cord with the compressor. It has run fine up until today - blows out cold air for about 10 minutes this afternoon and then I could hear the compressor slow down and stop - fan keeps blowing air. Got a question - My ac unit fan works fine; but when the compressor tries to fire up the capacitor draws power from the line and my lights dim for about 2 seconds then repeats every 3 or 4 minutes. Let’s look at the possible causes of this. I put an amp meter on it with access door removed and it pulls between 11 and 15 amps at different times while running. Most homes have a dedicated 20-amp circuit for the fridge alone, while older homes may have it on a general kitchen circuit. Find the blockage and remove it. The difference between this and the old compressor is night and day. Air compressors are a highly useful source of mechanical energy around the home or the garage. Your compressor draws about 15amps and will probably draw more as the units heats up. Larger tanks are heavy and must be safely mounted but can operate for longer periods without refilling. After a few minutes of this, the breaker tripped again. Manitowoc UY130 that is acting up. 0 HP, and the tank capacity is 5. If it ran for five seconds before tripping a 20 amp breaker then something is wrong and wiring it to 30 amps is likely to burn it up. When I turned on my AC, it would start and run for 20 seconds or so, and then trip the breaker. Start at your circuit breaker panel and flip the breaker that powers your AC. A compressor works to push pressurized air from a holding tank through a line to the particular tool you are using. The breaker for the pump had tripped. Air Conditioner Troubleshooting. Turn off and unplug everything on the circuit, then reset the breaker. damage to your air conditioner by keeping the compressor warm. I replaced the start capacitor with the exact same size that came off of it. With these few mods this compressor for the money is by far the best deal going, Ill keep you posted as i see how its longevity goes, I use and awful lot of air so this baby will be put threw the test. About Ac Seconds Shuts A After Compressor Few Off. Let it get to 3-5 PSI then turn control switch and breaker OFF. About Circuit Air Compressor Breaker Sizing. A clogged filter is just one reason that your air conditioner’s fan motor may be drawing too much power and causing the AC circuit breaker to trip. When I reset the breaker - the unit immediately comes back on again and runs until the thermostat registers desired temperature has been reached. I connected it to an existing 230 line that was previously used for an RV connection. Why is My AC Tripping the Circuit Breaker?. This can lead to premature bearing and mechanical wear as the liquid displaces the oil. However, the opposite scenario can also . The valve always opens at first, giving off some white smoke. Answer (1 of 3): For 6 Reason Your AC Compressor Tripping Frequently 1) Dirty air channel Envision constraining a cushion over your face. Also check all electrical connections in pressure switch box and plug. It sounds as though the compressor is seizing up but then it starts up just fine after a few. If I switch the unit off and wait 10 minutes, it restarts, and repeats the cycle. In an air compressor, the current flow is regulated by the circuit breaker, which stops the flow when necessary as a protective measure for the performance and quality of the machine. When the fan motor requires cleaning, the fan needs to work harder and will trip the circuit breaker. It is a great 5hp electric motor for air compressor and it utilizes 1745 rpm and has a single-phase voltage of 208-230 Rpm (21. I shut the unitI wait a minute and turn it back on and it then runs perfectly all day, wether I leave it on to recycle or turn it on and off manually. Portable air compressor (1 to 1. One of the most common AC problems our expert technicians at Michael Bonsby HVAC & Plumbing hear is, “My air conditioner keeps turning off!”. A short circuit will trip any breaker, including an overload breaker. Few Seconds Ac Off Compressor Shuts After A. First empty all the air from the compressor. Running 5 hp air compressor in shed electrical questions. You can avoid paying hefty repair fees if the. Keeps Overload Tripping Compressor Air. Circuit breaker resets itself & then repeats the above steps. Why does my craftsman air compressor trip my circuit breaker. The factory specs for the low pressure side are 26 to 30 PSI to allow the pressure switch to turn on the compressor. Should I Replace the AC Compressor or Buy a New Air Conditioner?. When you perform this test, and everything seems normal, and the circuit breaker still trips, you likely have a mechanical issue. Provided below is a general list of common air compressor problems, and a few quick fixes that may help solve your dilemma. Features: Heavy-duty, 150 psi portable air compressor. Another possibility is a dirty outdoor unit. If the air conditioner will not working, at first check your air conditioner’s circuit breaker. 2 says ago i have noticed the pool pump hasnt started in the morning and turned breaker on and this morning ( a day later) did not turn either. This will only go on for a few minutes but in that time the compressor destroys itself and fills the system with acid. I then waited 2-3 hours, letting everything dry completely in the sun, before powering on again the unit. I turned off circuit breaker, replaced capacitor (5/40 370V), turned on circuit breaker. Air Compressor Won't Start. update: a year later looks like the reeds are shot or the motor is bad, capacitor is fine but bogs down and trips breaker once the pressure gets. The compressor of a fridge utilizes a gaseous refrigerant that is in a low-pressure state. Do you hear a slight "click" after the motor starts? If you hear a click, and then the motor stops running a few seconds later, then it's most likely the run capacitor. I can even keep plaz cutting when the comp kicks on. My soda machine is not cooling, diagnose bad compressor. Is this likely to be a) the blower motor b) Tonight I walked in and the system was blowing air (not cold). I have replaced points and breaker,and when I turn my well pump on it will run for a couple seconds and then the breaker will blow again help. I left access door off for about two weeks while checking amps and it never tripped while door was removed. It will come on run for 45 min- to an hour , sometimes 15 min- 30 min then the fan shuts off then theres this hiss, pop, and a few other sounds by the time get back to the thermostat to turn it off it trips the breaker. This is because the circuit breaker just prevented your air conditioner from a big electrical accident. If your AC unit has trouble starting before it trips the circuit breaker, it could have a bad capacitor. Leave it disconnected for two minutes and 30 seconds, then reconnect power. I ordered the new pump (Pentair 340042 Stainless Steel SuperFlo Almond 230-Volt 60-Hertz Single-Phase 2-Speed Pool Pump, 1-Horsepower) and it will arrive in by Saturday morning. The Makita which markets it's compressor as quiet runs at 79dba. This breaker automatically cuts off power to your hot tub to prevent electrical shock. The fan blades barely have time to stop spinning. (The strongest power draw would be …. I am aware of the Wye Delta transition inrush. If your circuit breaker keeps tripping, it's usually a sign of something wrong with the circuit. If a breaker is prone to tripping and there's no obvious cause, it could indicate a problem in the circuit wiring. Air Conditioner Compressor Failure - There may come a day when your air conditioner or heat pump system fails to cool your home or business and you call an air conditioning and heating contractor to fix the problem. The problem is that when I initially start the unit in the morning it will run for about 30 seconds and then the compressor shuts down, but the fan remains on. Indicators that your air compressor is running hot include: Shutting down during high loads; Frequent circuit breaker tripping; Needing more time to reach peak operating performance. My outdoor compressor keeps tripping the circuit breaker on my panel. The tricky part is compressor start-up, when the amp load doubles for a few seconds and gives you a brief 3000-3600 watt load. This is a safety device to prevent the microwave from overheating. The new RIDGID Tri-Stack 5 Gallon Air Compressor features a unique and innovative 5 in 1 design system that is easy to use and comfortable to carry. If you have a compressed air dryer, check the dew point. air compressor won't turn off. When your system’s air filter is full of dirt and debris, the flow of air is restricted, which can impede the functioning of your air conditioner. Check the condensate trap for good operation. It occurs when a circuit is attempting to draw a greater electrical load than it is intended to carry. Hello thank you for taking the time to look/answer my question. The upper part of the system always carries strong voltage even after. A fridge may trip off the electric if there's an earthing issue with the compressor. Compressor and tanks together for maximum tank capacity …. 6 amps with the compressor on and the fan running on high. The starting phase of an electric motor occurs for just a few seconds but it requires multiple times the circuit size to deliver this power and start the motor, this is why special motor controls are required for larger motors and prevent the circuit from tripping off during the start cycle. When too many appliances or light fixtures are operating at the same time, the internal sensing mechanism in the circuit breaker heats up, and the breaker "trips," usually by means. This product solved the problem I have with my Central pneumatic air compressor running for a few seconds then shutting off. I did some trouble shooting and thought it might be the fan motore, so I replaced the fan motor today. Electrical issues can be dangerous and should not be taken lightly. If this is the problem, then a professional can possibly install a hard start kit to help the heat. Circuit Breaker, 40 Amps, Number of Poles: 2, 600VAC AC Voltage Rating Brand: EATON Mfr: FD2040 Shipping Weight: 3. craftsman air compressor to run slow. A weak compressor has trouble starting. To do this, you'll first want to flip the switch at your circuit breaker back to the "on" position. The one that keeps going bad (3 times in as many months) is a 161-193mfd start capacitor, the run cap seems to be OK. I recently started having my AC compressor just stop working – vents started blowing hot air. If you find some other kind of problem, then fix it. To check whether your problem is with the welder or the breaker, try plugging the welder into an outlet connected to a different breaker. There could be other issues, but these are the common ones. Sometimes it will be running for a few minutes unloaded and trip. Same breaker may allow 25 Amps for 3-5 hours, 30 amps for 1-3 hours, 40 amps for upto an hour, 60 amps for 15 minutes, 100 amps for 1 - 5 minutes, and so on. If Alliance has already said you have a few small leaks, plus you have a pump that runs 20-30 minutes, you have at a couple separate issues going on. If this is happening to you now, it's likely a tripped circuit breaker. Seven Reasons Why the AC Fan Runs But Compressor Does Not Start: 1. Also you may have a bad circuit breaker even if you use lights or small power tools in your space,Your air compressor uses more amps to start and will put more of a draw on circuit breaker. Hold down the reset button for 3 to 5 seconds and then release. Make sure the air conditioner plug is pushed completely into the outlet. First is the check valve being worn and backflowing from the tank to the compressor. The fan blades need a little push to get them started. The current surge when a motor starts can trip the breaker. For the motor, 49 AMP is the normal value, and if the OVERLOAD relay …. I have the same compressor and if it is not on a 20amp circuit it sputters for about 10 seconds then dies. I have a Devilbliss air compressor (FB5520VP-WK) in which I had replaced the original pressure switch (Ac-0385-1) to a Lefoo LF10-4H-1-NPT1/4-95-125 because it no longer worked due to age and leakage. Induction Motor Trips While Shifting Star to Delta. working correctly, this high current draw only lasts for a few seconds. If the converter had a problem creating an overload, it would likely trip it's own breaker. The motor is trying to turn over the air compressor and something is causing the electric motor to work too hard resulting in a high amp draw which is popping the breaker. The compressor will pump up to the correct amount and the silver tube that goes to … read more. Sometimes capacitors wear out, so they’ll need to be replaced. We've found that 3 times is safe enough, as no modern air conditioner seems to be drawing 5 times the wattage. Now the machine fills, but as soon as the water shuts off, the breaker trips. The reason for the breaker tripping immediately the first few times was from the compressor trying to start. • When power is restored, wait 3 minutes to restart the air conditioner to prevent tripping of the compressor overload. I checked circuit breaker and it was open. For peace of mind though, you can fit it with an "X" as opposed to a "T" fitting and have the gauge from the tank provide a high side reading. Peak current is 180A for 60 ms, enough time to trip a breaker but probably not to start a motor. DEWALT D55146 4-1/2-Gallon 200-PSI Hand Carry Compressor With Wheels. There are so many different reasons as to why your air compressor is tripping your circuit breaker. Never tripped a breaker, and resolved on its own on later cycles. As with most machines with multiple moving parts, problems can occur. 10 Reasons Your Thermostat Screen is Blank. The HVAC technician arrives and starts the process of troubleshooting the air conditioner system. The overload is about 15% but an air compressor typically doesn't run more than a few minutes so the breaker doesn't trip. Air Compressor Pressure Relief Valve Adjustment. Compressor Sizing Air Breaker Circuit. There are a few options out there but I landed on the SuperFlow MV-90 as it. An arc-fault circuit interrupter (AFCI) is a circuit breaker* located in your electrical panel that serves the functions of a normal breaker but also senses hazardous arcing on its circuit and will trip off for this. Trip danger will occur the moment it reaches beyond its range. Problem is that suddenly, when I turn it on it will run for about 2 minutes then trip the thermal overload switch on the motor. About Sizing Breaker Circuit Air Compressor. After finding it, shut the air conditioning unit. and building up pressure, it starts very slowly, and then after a few seconds blows the breaker for whatever circuit it's plugged into. If the breaker trips while the compressor is pumping up the problem is probably in the circuit breaker itself. The compressor kicks on, fully charges, then kicks off with the trigger down. Ran compressor with amp clamp meter reads 120v @11. Then it’s perhaps time for a new capacitor. What parts do I need to rebuild the air pump. It turns on and runs for about 2s and then shuts off. I want to upgrade my super-cheapo air compressor with a unit large enough to run a sodablast or sandblaster. As a comparison, I run a 80 gallon 2 stage compressor. Capacitors store up the energy that powers the air conditioner's fans. One thing to check is that all connections on the circuit, starting at the breaker panel, are clean and tight. An HVAC expert will repair or replace a faulty AC compressor, power control board, run capacitor, and thermistor as the case requires. I'm having a problem with my 20 gallon, single stage electric air compressor. If the AC not turning on or doesn’t kick on, repeat this step. There are many ways to find replacement air compressor parts. It's been running since december and we haven't had this issue but it's also never dropped below 20. I pulled the belt off of the motor and the motor then turns on fine. We have the Micro Air EasyStart on our Dometic heat pump. The 40 amp breaker would only be slightly less than 3x rule. Answer (1 of 5): Could be a problem or could be normal. This causes a direct short to ground, igniting the oil and causing a burnout, which causes a circuit breaker trip. The first thing to check is the breaker (in your home’s electrical service panel) of the circuit serving the fridge. Start capacitor seems to be okay. I have a brand new trailer with a dometic roof a/c. Campbell hausfeld air compressor. Sizing Air Breaker Compressor Circuit. 25 panels before running and then it runs for about 30 seconds as compared to 90 seconds to get fully "charged". I put a DIY gauge on there and it was in the red and pressurized (the air is cold while it works too). It's in the 90's in GA and that got real dang old real dang quickly. On a hot summer day, a home's central air conditioner is the biggest electricity consumer, exceeding all …. central pneumatic air compressor keeps tripping reset button. Here's why: Your standard split A/C unit has 2 parts: the outside unit and the inside unit. I can not reach the middle coil but it is not too dirty. Several conditions cause short cycling, including a faulty or obstructed thermostat, leaking refrigerant, icy coils or an HVAC system that is too big for the building in which it is installed. Flip breaker back on and AC runs for a few seconds and flips again. As such the fuse is considered the last resort for shutting down a circuit. WHY IS MY AIR CONDITIONER CONSTANTLY RUNNING? Your thermostat could be set too high. A “grounded compressor” or “compressor short to ground” means that an electrical winding inside the compressor has broken and hit the side of the compressor.