It’s important to get the fan up and running ASAP or else the home will get uncomfortable in a hurry and you could end up damaging the compressor. AC Compressor Is Not Working But the AC Fan Runs[...], Air Conditioner Compressor Is Not Working, and Fan Is Running[...], When the Outside AC Isn’t Running Even Though the Inside[...]. Heat still transfers from warm to cool areas. These two components play a critical role in providing the compressor with the power it needs to operate. The AC compressor is the heart of the system and is an expensive part to replace. Some air conditioner fan problems might be a power issue, rather than anything to do with the fan’s assembly. Many small, inexpensive and easily replaceable parts are prone to breaking down. Unfortunately, air conditioners can break down for a number of reasons – leaving you to sweat it out while you search for a reliable HVAC company to make the repair. The compressor is the driving force in your cooling system and without it, your air conditioner isn't able to deliver cool air. First, use a vacuum and then thoroughly clean the housing. This can result from a simple issue like a faulty capacitor or an overheating unit. The most common issue is that the refrigerant is liquid instead of gas when it gets to the compressor inlet. Even if your air conditioning system is still operating, when your air filter and condenser coil are dirty your compressor is required to work harder and it will eventually overheat. The high pressure moves the refrigerant to the outdoor unit where it enters the condenser and releases it's heat. This can be an expensive job and should only be done by a professional. In this scenario, you know power is present because you can hear the compressor running. If I spin the fan blade, the fan starts starts up but the compressor is still not running. This places unnecessary wear-and-tear on the compressor and it will eventually wear out. If your air conditioner is not working, the problem can often be pinpointed to the HVAC compressor. When I checked the outside unit, the fan is not turning. AC is running but not blowing cool air. The fan keeps running because the central unit has no such problem. If your unit has a low pressure switch (not all do), it would open the 24V signal going to the contactor meaning that neither the compressor nor condenser fan would run. If this is the case, you can flip the switch at … If the compressor is running, but the fan motor is not running, the fan motor or the fan motor capacitor are likely at fault. It was working find but now nothin7. 2940 NW Commerce Park Dr #12, Boynton Beach, FL 33426, Products and Services: If you suspect that your refrigerant levels are low, you should contact a professional to check your lines for leaks and recharge the system. Considering how often your air conditioner runs, it isn’t surprising that something has gone wrong with the compressor. Why do we say this? Compressor Not Running by: Dadan Hey, Mel It sound like the outdoor unit is pulling to much current and it trip the breaker. The capacitor provides the power needed to start and run the compressor, the blower motor, and the outer fan. Some issues can be resolved by yourself, especially if you're a DIY'er, and others should be fixed by an HVAC professional. If you see that the contacts on the contactor or burnt or not engaged (energized) then you might either have a contactor problem or a low voltage problem (not getting 24 volts AC to the contactor). Well, there are many reasons behind your AC, not blowing cool air. The upside is that they are the easiest and cheapest parts to replace. When your AC compressor isn't working you may notice that the circuit breaker frequently trips, or that the compressor shuts down completely. Call us Any Time! No matter how high you set that regulator, it does not seem to work. Dadan No Indoor Fan, Fan Not Running, Fan Not Blowing, No Airflow: However you want to word it, if your indoor fan isn't working it could be several things. Coolant fans not running when ac is turned on. Very useful and very good information. First, the thin, soft metal strips often bend and are not able to transfer heat as well as they should. If you notice a humming sound and your AC compressor isn't working, it could be that the compressor is attempting to access the capacitor, only the capacitor is faulty. System has freon in it. Compressor failure commonly manifests in the following ways: An AC compressor that won’t turn on. You should also be able to do it yourself. There are also times where you can fix it yourself. If you can’t hear the AC compressor running, and the fan motor isn’t turning, your problem is likely outside of these parts. When the fan goes down there is no way to cycle the air and thus the system is essentially stalled. Your air conditioning unit needs the compressor in order to deliver cool air to the inside of your house. This can be a costly mistake. If the thermostat does not have continuity, replace it. When the ac compressor not working but the fan is running, chances are the outer unit housing the compressor isn’t receiving power. It might even be an electrical issue such as the one discussed above. For the heat to be transferred out efficiently, the compressor needs to be appropriately maintained and in working condition. Copyright 2020 Think Tank Home. Some maintenance you can do yourself, and other jobs, you'll want to call a professional. In fact, it could be as simple as a thermostat setting. AC compressor clutch engage then it will disengage. Regular maintenance of the unit is the best preventative measure since it solves most of the issues before they escalate. Here's what you need to do: Replace your air filter, clean the condenser coils, and check and clear any obstructions in the supply vents. Your air conditioner doesn't just move air from one place to another, it also picks up particles of dust and debris in the process. After we refilled it the the AC compressor will not turn on ... but if I drive somewhere and the AC has been running full blast, ... and i can Feel and hear the relay 384 clicking on. In fact, the entire AC system can shut down if your filter(s), condensor coil, or evaporator are dirty. Regular Maintenance - The key to keeping your AC system operating efficiently is regular maintenance. AC Compressor Not Working but Fan is Running. I changed the 2 fuses out, checked the power to the fuse box (got power to the AC), and cleaned off the fins (LOTS of cottonwood seeds!). But not all compressor issues require replacement. Emergency Air Conditioning Repair in Palm Beach County and Surrounding Area. Let's take a look at the most common reasons why your AC compressor isn't working but the fan is running. Then inspect the wiring between the inside and outside unit. If your system is over a decade old it may have reached the end of it's useful life. (855)561-COLD[2653], All Rights Reserved © 2020 • All Time Air Conditioning • CAC 1816560 • 2940 NW Commerce Park Dr #12, Boynton Beach, FL, Try our Emergency Service Application 100% FREE FOREVER, 4 Reasons Why AC Compressor Not Working But Fan Is Running. AC units are also fused and before getting deeper into other more complicated scenarios, let’s see if the fuse is blown. This is an inexpensive repair, but should be done by a qualified technician. The compressor is at the center and heart of the AC unit. Grab your hose and use a spray-on condenser cleaner and you'll be able to remove the dirt and debris that's clogging them. Calling the local tech is the best solution. In a split AC system the compressor is housed in the outdoor unit. We will go over a few things to check before calling for service. The starter relay transmits power from the capacitors to the compressor. While it may take some detective work, you should be able to identify the issue—if not, you can always give your local HVAC technician a call. Your compressor is designed to have a long service life, but you need to give it a little help, and that means conducting annual maintenance. Split systems have an indoor unit and an outdoor unit. If the compressor isn’t starting, check the wiring connecting the two units. First, check the circuit breaker to see if … Your AC compressor is the heart of your air conditioning system and when it's not working  properly you'll definitely know. The AC capacitor provides power to the compressor, outer fan, and the blower motor. A working AC will provide you with nice and cold air as opposed to bearing the brunt of warm, dry air. Valves – A broken valve can create major problems in a compressor. As you might imagine, replacing your entire system isn't cheap. It's very common for leaves and debris to collect inside. If both the compressor and the fan motor won’t run, use a multimeter to test the temperature control thermostat for continuity. A start capacitor is an electric device that gets the electric motor running at startup by providing a "jolt" of stored electrical energy. There are two things to do in caring for your condenser coil. Could this be the capacitor? Here’s an insight as to why that could be happening. What If The AC Fan And Compressor Are Not Running? If your condenser coil isn't able to do this efficiently, your entire air conditioning system will need to work harder to keep your house cool. When your system isn't able to cool, the compressor will keep running as it attempts to drop the thermostat temperature. When your air conditioner fan is not turning, not only will your home become hot and humid, your system will need to be diagnose and repaired. The starter relay transmits the power to the compressor from the capacitors. If this is your problem, you should be able to fix it yourself, unless of course, the compressor was damaged. The starter relays and capacitors are integral in supplying power to the compressor. First, check the circuit breaker to see if it has tripped or if there's a blown fuse. If the fan takes off and then keeps going on its own, you more than likely have a bad start capacitor. In many cases, the first sign of low refrigerant is when the AC is on but the air never seems to get cool. Once a year, before the cooling season, remove the cover from the outdoor unit. (paid links) As an Amazon and Ebay Associate I earn from qualifying purchases. Clogged air filters and condenser coils put the compressor under pressure, making it overheat. The liquid refrigerant travels to the indoor unit and enters the evaporator, where it once again becomes a gas. You took over its job of kick-starting the fan by pushing the blades. But if it didn't, you'll need to replace your compressor. There's a lot of reasons why your compressor breaks down. Hi there. The gaseous refrigerant enters the AC compressor where the termperature is increased by compression, to a point where it changes into a high pressure gas. While circulating through the system, pressure changes occur to the refrigerant that allow the heat from inside your home to be carried and released outside. Capacitors are like mini jump starts for the various motors in your AC system. Compressor not running, but condenser fan is by: Anonymous Have the same problem. You have two fan motors—one inside and one outside—as well as the motor to run the compressor. Other times, your HVAC may simply need a thorough cleaning. The Latest in Heating, Ventilation & Air Conditioner Systems, AC Compressor Not Working But Fan Is Running, air conditioner compressor not turning on, outside ac unit not running but inside is Page Navigation, split ac compressor not working but fan is running, AC Fan Runs But Compressor Does Not Start, Outside Air Conditioner Unit Fan is Not Working (2020), Air Conditioning: The Eco Friendly Alternatives, Maintaining my R-22 Air Conditioner: Is it Worth it? Best case scenario, the compressor automatically shuts down before getting damaged. Under these circumstances, the compressor may still run, but the air conditioner won’t cool the air. The refrigerant’s temperature should always be higher than its surrounding environment. Why is My AC Running but Fan Not Spinning? At this point it is ready to absorb the heat inside your house. Another common symptom is for the outdoor unit to shake and make noises. The fan keeps running because the central unit has no such problem. Wash the condenser coils, replace the air filters, and clear out all blockages and obstructions in the supply vents for air to flow freely. Otherwise, the continuous overheating may necessitate the compressor getting replaced. Since I have started using the “Term-Lok” repair kit, I have not had one call back for burnt compressor terminals! Because it’s very rare for both the fan and the compressor to fail at once. When the air filter is dirty the airflow is significantly reduced, and without adequate airflow the evaporator coil can stop working. When the ac compressor not working but the fan is running, chances are the outer unit housing the compressor isn’t receiving power. Tony, since the condenser fan is running, you have 24VAC at the outside unit and the contactor is working. A build-up of debris and dirt in the filters, evaporators, or condenser soil can result in the entire unit shutting down. They are the most prevalent cause of compressor problems. Why Your AC Compressor is Not Working But the Fan is Running, AC Evaporator Coils: Everything You Need to Know, Evaporator Coil Leak: What You Need to Do, Looking for A Portable Air Conditioner That Doesn’t Need A Window, Why Your Furnace is Short Cycling and What to Do About It, What To Do When Your Air Conditioner Air Flow Is Weak, Best 50 Gallon Electric Water Heaters: Our Top Picks. AC Compressor Running But Not Cooling: The Possible Reasons Simply follow these AC fan troubleshooting steps to get your cold air flowing again ASAP. The average cost of replacing your home AC compressor is $1,200, so doing a little preventative maintenance can save you a lot of money in the long run. Other potential causes may include a faulty thermostat, mismatched indoor and outdoor units, or the AC may just be old. My AC broke then I went to this site, and thought it was very helpful. warm or … Scenario 1: Fan Isn’t Spinning and You Can’t Hear the Compressor Various parts of your air conditioner can overheat and trip your circuit breaker, forcing your air conditioner to shut down. My car has an automatic transmission. Using this checklist, you should be able to check for/diagnose the symptoms of your malfunctioning AC fan. However, having the fan running but the compressor not working is nothing too dire, so don’t panic. We highly recommend contacting an HVAC professional to help you determine your next move. Sometimes it can be a contactor problem. Neither the AC Fan Nor the Compressor Works If no sound is coming from the compressor and the fan isn’t turning, then you may not be getting power to the unit … The compressor is an integral part of the air conditioning system. Strange noises and shaking from the outdoor unit. In most cases, if the AC is not working, the root of the problem often traces back to the HVAC compressor. Uh oh! All Rights Reserved. The majority of the debris is collected by the filter, but if the filter isn't changed regularly the debris will build-up on the condensor coils. However, sometimes your luck deprives, and you encounter that AC compressor running but not cooling. Or it could be that the compressor's oil lubricant was inadequate. Sometimes the AC’s compressor is not working, but the fan still runs. If the fan doesn’t start running, you may have a bad fan motor. I could not believe it! When this is not possible, call your professional HVAC tech in to diagnose the problem and make the necessary repairs. In which case, the air conditioning system won't kick-in and neither will the compressor. It could be a refrigerant issue: Too much, not enough, or blocked lines. 4 thoughts on “ Reasons an Air Conditioner Compressor Will Not Start ” James L Cue May 29, 2020. Something’s wrong with your AC, and now, you’re wondering why the AC compressor is not working but the fan is running. If you’re inexperienced with this sort of thing, let the information below help you Replace your filter every month during the cooling season. And of course, there's the situation where you'll find the fan running but the AC compressor not working. Also, you may find such problems with air conditioners that are more than a decade old. He'll do a more thorough cleaning and inspection, check refrigerant levels, and ensure that everything is running as it should. An air conditioner that has lost its cooling capabilities or is cooling inadequately (i.e. However, it'll run far more efficiently and you'll save money every month on your utility bills. These units are matched and designed to work together. The only option with a dead compressor is a replacement. A pro in the industry can fix it before the utility begins to rack up. AC Troubleshooting: Why Your Air Conditioner Freezes Up and What to Do About it. This article will cover each and help you determine if you need to hire an HVAC professional to help you resolve your problem. Scenario A: Compressor works, but the fan does not spin. I hear it click but the fan does not come on. If your fan is running but your AC compressor isn't working there are several possible reasons why. A compressor that shakes or stutters when it’s turned on, otherwise known as hard starting. The run capacitor helps correct the "power factor" of the motor. Symptoms of a Central A/C Fan Not Working Your knowledge is very much appreciated and I thank you. My car has 234565 miles. This is called a closed system, and if there are no leaks within the system, the refrigerant level should never change. Ac Compressor Not Running But Fan Does Ac Unit Fan Not Running But Compressor Is Articles & Shopping. If your compressor overheats, cross your fingers that it shuts down automatically before any damage was done. Unit not receiving power. Although there may be other issues you'll notice as well. I'm not 100 percent sure. Unfortunately, even the best air conditioning systems have a service life. Here are three tips that can help keep your AC compressor working: Clean the Condenser Coil - This is a simple task that will prolong the life of your AC compressor. What Happens If the AC Compressor Fails to … These are the top reasons why you'll find your AC compressor not working but the fan is running. That’s why it’s so upsetting to crank up your AC only to find the air conditioner fan not working, and the temperature in your home rising. If your AC compressor is not functioning, here are some situations you may face: It’s Time to Fix AC Compressor Not Working, but Fan is Running. If after adjusting your thermostat and your AC compressor still doesn't start, you may have a faulty thermostat which will need to be replaced by a technician. The warmed refrigerant is heated up further, which converts it from its gaseous state into liquid. This happens when the AC fan is running, but the compressor does not kick in. Capacitors store up energy and when the motors need to turn on, the capacitor will release that boost of energy to get the motors running. Although, this isn't the best outcome, it is far less expensive than replacing your compressor! Most standard central AC configurations use what is called a split system. Great info on the A/C troubleshooting. This problem may not be your compressor at all! If you find that they are bent, you can use a fin straightening tool to fix the problem. Here are a few tasks you can do yourself: We highly recommend having your AC system inspected by a professional once a year.

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