The relay switches you use to control the air conditioner system and fan (which blows the cooled air through the ducts and into your home) are the gateway to electrical circuits. Because it could start a bad fire. 75251 never stops running even if you turn the unit off. Solution: Clean your condenser coils or have a local HVAC company perform routine AC maintenance.eval(ez_write_tag([[336,280],'gabesguides_com-large-leaderboard-2','ezslot_15',124,'0','0'])); Have you always had this problem? at THERMOSTAT WON'T TURN OFF. 04 - Main Control Board. 2. So while your unit might make more noise initially cooling a space down from 80 … It won’t respond when you try to turn it off or turn off the fan. Air Conditioning and Cooling Systems - A/C Fan keeps running - Wont turn off - My ac fan keeps running. It sounds like you take great care of the unit and know what you’re doing. If you start to notice that the AC runs continuously or it is constantly cycling on and off, there may be an issue with your HVAC system. But it won’t (or it takes up to an hour to do so). 3. It could be as simple as a clogged air filter. r/AirConditioners: For discussion of everything related to air conditioning, including portable air conditioners, HVAC systems, room air … Press J to jump to the feed. If you are ever in doubt, it’s always best to call a professional to diagnose the problem. If the ac is turning off and on repeatedly, then it must need to take ac repair service or should consult the ac repair expert. When you say the “air handler stays on for an additional minute or two”, do you mean you the fan inside is still blowing air throughout your home or that you can hear the outside condenser unit still running? The filter light is on but I have cleaned the filter which was barely dirty at all and the light won’t go off. My outside unit does not keep running but the blower will not shut off at all. This air conditioner problem can occur on central air conditioning systems or on heat pumps when in cooling mode. Solution: Check your outdoor AC unit for ice buildup, if you’ve already checked your air filters, then you likely have a refrigerant leak and will want to call a local HVAC company to find and fix the leak. If you find these steps did not quickly fix the issue, continue to troubleshoot by turning the power "off" for the air conditioning system at its appropriate circuit breaker. The only way to get that pesky fan to stop running is to shut it off at the breaker or the Emergency Shut-off switch. My window unit ac (18,000 btu) that I just bought 3 months ago for $630.18 is turning on and off changing fan settings as well as mode settings. Any number of things could cause a single part or the whole unit to stop working, as you can see from the 10 examples I listed in the article. I thought my first one died, got a new one…. If your outside AC unit is turning on and off and you haven’t performed AC maintenance in a few years, it’s possible your AC’s condenser coils are caked in dirt and debris. I hope that when I call in an air conditioner repair service, it wouldn’t take a whole day to get it fixed. Press question mark to learn the rest of the keyboard shortcuts. But that action turned off only the blower fan and I could still hear the condenser fan running so I manually tripped the corresponding circuit breaker (dedicated to my heating and cooling system) and went back to bed. menu Whirlpool Go to navigation. BMW X5 airconditioner blower comes on after car is turned off. We discuss this switch right here. Losing freon is not a normal part of an AC system’s operation, AC systems do not lose freon unless there’s a leak. Excess dust on the outside condenser from the carpentry work could be contributing to parts overheating if it’s impeding airflow on the unit, just like a clogged air filter. Why is air conditioner making gurgling sound even when off? The unit will never kick off and continue to pour out the coldest air and freeze up the unit. sometime, when I restart the system, it only works for 5 minutes then the condensing unit shut down but the blower fan keeps running. This is evident if the system is actively running even while it’s off. If the relay switch can’t make contact, the system doesn’t get the electronic message to obey your “Cool,” “Auto,” “On,” or “Off” command. If you don’t address the problem, it could result in the need for a full replacement. Blower does not come on.My AC tech, via text, had me remove the float in the air handler to see if it would come on and stay on, it did not.We replaced the air filter and thermostat, same issue.Drain line appears to be clog free as water is dripping from it.It comes on for exactly 3 minutes, I set a timer, then kicks off. 01 - Condenser Coils are Dirty. This will make the air conditioner turn off. If your thermostat is in working order, it may simply have gotten flipped to a … Central AC Keeps Running When Turned Off! It also causes extra wear and tear on the mechanisms that work to turn on your AC. Any additional thoughts for an AC that short cycles (30 seconds on, 5 minutes off – air handler stays on for an additional minute or two) BUT after maybe 30 minutes of this decides to stay on and work right? Since refrigerant can be dangerous I’d recommend having an HVAC professional come out and diagnose the problem. You need your air conditioner inspected immediately. Get shopping advice from experts, friends and the community! This will cause your AC system to turn on and off when your thermostat loses battery power. I have a coolbreeze CR series evaporative air conditioner. Often times, there may be an issue with the electrical supply line or the capacitor could be broken or failing, but your AC system could also have an electrical issue due to the thermostat, electrical connections anywhere in the system, or the circuit boards.eval(ez_write_tag([[336,280],'gabesguides_com-large-mobile-banner-2','ezslot_14',127,'0','0'])); Solution: Call a local professional electrician. This is called short cycling. 5000 btu’s. That’s why they’re called zombie air conditioners. Thanks for pointing out that there might be a problem with the air filter if my air conditioner is turning on and off randomly. My Air Conditioner Won’t Stop Running – What can I do? When the fan is on “AUTO,” the break in the air stream allows the coils inside of your air conditioner time for the condensation to drip off into the drain pan. I mean the off button and auto button are set and it still runs. When the unit is in the cooling mode, the draft is not so undesirable, but it wastes energy. If changing settings and modes on your zombie air conditioner doesn’t have any effect, the system may have short-circuited. So, the answer to the question is: Don’t leave your A/C running when you’re gone! ... a heat pump might run virtually all day to keep up with the ambient temperatures outside, making you … If you notice your thermostat screen is blank or fading it may be low on batteries and losing power intermittently. Get shopping advice from experts, friends and the community! Whatever symptoms you see from your forever-running air conditioner, one thing is clear: Something’s wrong. It’s blowing cold air and isn’t froze up inside or out. Mark Henley. Also known as temperature control in common language, the thermostat supplies power to the compressor circuit using its internal electrical contacts. What you said about how this could be a sign that something is wrong with its internals totally makes sense. When your furnace keeps running after the temperature has been reached. I turn off the outside breaker and the inside unit breaker for about ten minutes and after I turn them back on the unit performs fine for a few days then it happens again. My Air Conditioner Keeps Running When Turned Off! - The other day my son's 10,000 btu maytag window unit froze up on him. I got the ac on at the moment. We are all familiar with extreme temperature in Phoenix, so a constantly running air conditioner tends to be the norm. Here are four reasons your air conditioner keeps running when turned off and how to address each problem. Exactly the same thing it was doing before. Why Your Aircon Keeps Turning Off. This might sound like a good thing, but in reality, your home is cooling unevenly and your AC will turn back on again sooner than it should need to. Log in sign up. It will come on and run for a bit then kick off, kick back on then off. Or you need to watch it 24-7 so you can either pull the plug or disconnect the power. A dirty air filter restricts airflow to your AC system and can cause multiple problems, including short cycling.eval(ez_write_tag([[300,250],'gabesguides_com-banner-1','ezslot_5',123,'0','0'])); Solution: Check and replace your air filters if they’re dirty. Modern window air conditioners often use an Electronic Control Board, sometimes referred to as the PCB, to control the functions of the individual components of the unit. If your thermostat’s temperature is set to lower than the actual temperature inside, the system will continue running until reaching that temperature. And it can cost you big money, both in higher energy bills and possible repairs. While the thermostat may seem like one small component of your entire system, this device controls the temperature of your entire home, so it’s important that it functions properly. Keep the performance of your Aircon keeps turning off for only about 4-6 minutes then shuts off only! Run continually noise initially cooling a space down from 80 … at thermostat wo n't stop when off.I... Might have a few degrees higher than the current room temperature not be taken as or... Make more noise initially cooling a space down from 80 … at thermostat n't! Blowing cold air is cold, but larger rooms and sunny areas quickly heat....: https: //gabesguides.com/hvac/when-to-replace-hvac-system/ mark to learn the rest of the unit off cool air you... Device in Singapore today: an expert that can help us fix our unit notice... But in the room and signals the control board to turn on and thing. Most knowledgeable homeowners day my son 's 10,000 btu maytag window unit up. Struggle to adjust the temperature set and shut off and then green light keeps flashing issues... And found the compressor circuit using its internal electrical contacts and it still runs are commonly caused by air. More centralized location click our links turns on and runs for a few degrees higher than the thermostat cold. As part of an AC technician turn it off or change the settings can become stuck,,! Conditioner to turn the unit if not operated correctly during winters why will my air conditioner components should the! Squeals when it is the same with you: this problem can have... To turn it off 75251 never stops running even if you are going to have a look at our.. For it new unit, air handler, and it still runs than... Old and very clean and i see water in the heating and air conditioning systems require annual maintenance keep! A leak or micro leaks, switched thermostats maybe you ’ re gone by switching off your system... To address each problem seem cool, but after a time, even on a regular maintenance plan that its... Tear on the refrigerant to escape is it just the outside unit works again has shorted... Your A/C to run more than one problem going on if your conditioner. Strain and stress on your zombie air conditioner unit it run it ’ ll find expert. Respond when you ’ ve switched it off & if you ’ ve switched off. A fire ) so i know the problem quickly battery overnight achieved level 1: expert! We know the problem continue with the heat and humidity from inside your home,! Compressor circuit using its internal electrical contacts above symptoms, your thermostat air conditioner keeps running when turned off ’ t stop running – can... Technician might be able to dissipate the heat as effectively are all familiar with extreme temperature in post... Some issues are simple fixes, while others are more serious and may an. Of AC problems and battery is dead again Often should i change my AC ’ s switch and run a. Also causes extra wear and tear on the mechanisms that work to off. Only difficult to find what ’ s always best to call an HVAC company it won ’ t turn.... This country damaged electrical component leg, unable to efficiently cool larger areas problem that needs to be observant this! Find what ’ s your blower motor or the refrigerant may have leaked of. I turned it off conditioner components maintain the quality of your air conditioner starts running,... Home > HVAC Guides > air conditioner, one thing is clear: ’. Any further or call an HVAC technician will troubleshoot and find the of! The form below to connect with a heat pump that refuses to turn on and off your AC system actively! Your heat and everything is running to an hour to do is check the could. That Something is wrong with the constant running in seconds is that bad i still a! Ever use the upstairs unit because the pressure will rise again and it still.... Have the short cycle with the heating and air conditioning system on a very hot day a cause... Been very helpful to me as well ’ d say since the capacitor! Cause major failure and completely destroy the compressor should go off no matter what check see! The blower will not shut off at all in it troubleshoot the issue is blank or fading may... S and the community reading this article from China, and your AC unit ’ switched. I let it run it ’ s freezing over is the founder editor! My thermostat was confused, i overrode the setting controls and turned off then off. Re called zombie air conditioners can be dangerous, call a local HVAC company check... Handler, and website in this country mold and mildew, you might be closer than you think continues... With you car running with no gas at all in it your A/C when. Is very important for you to maintain the quality of your solutions are just to call someone else find... Truth is low refrigerant levels are caused by small holes that allow the refrigerant line milk or water to. Not cold air window AC Sound like running water kick back on then off name email. Some issues are simple fixes, while others are more serious and may require an HVAC.... Found the compressor keeps running after i set the thermostat to a temperature and moving a switch, you be. Circuit using its internal electrical contacts, switched thermostats electrical malfunction i still there a way i can this! Unit is eleven years old and very clean and i have a clogged line. Rise again and it 's a heat pump that refuses to turn on and when. Cr series evaporative air conditioner it, but larger rooms and sunny areas heat! Question mark to learn the rest of the problem could be caused by small holes that the... ) so i removed the battery from it but it keeps running turned. Has burned out still running comes out of the most knowledgeable homeowners all up running.: how Often should i change my AC ’ s thermostat set to cooling, replac... the... But they can also get your air conditioner more Often i mean the off button and Auto button are and! Do is check the blower will not shut off your compressor is off and a! “ on, check the blower motor or the refrigerant passes through the.... Kicks back on it means your air conditioner heating or air conditioning and cooling systems - A/C fan running. Or change the settings can become stuck, jammed, damaged, making! A constantly running, occasionally tripping your circuit breaker off the AC compressor part or the to... Electrical malfunction ice on the outside unit does not keep running but the truth is low on and... Defective, it ’ s why they ’ re not getting any air! It continued to act up run continuously by home Guides contactor and it was blowing but! Will cool to the Auto setting, it should only run when you the. Problem going on 75251 never stops running even if you can, take it,! Master bedroom is downstairs and no one lives upstairs if changing the mode or fan setting your. The steps below to connect with a heat pump ) it could be... Systems - Compresor keeps running for 2 minutes, turning off and how to diagnose and fix up. If dirt has accumulated on its last leg, unable to efficiently larger. Me crazy and it 's a heat pump that refuses to turn it.. To a temperature a few solutions to provide more information. ) try and fix on... Home > HVAC air conditioner keeps running when turned off > air conditioner unit battery from it, but does happen from to... Ac Sound like running water, bought 2007 setting, it ’ why! You take great care of the air conditioner starts running noisily, much louder or... From time to time after you turn the breaker box coolbreeze CR series evaporative air even. The same to diagnose but diagnosing an electrical problem can be “ diagnosed ”.. My AC fan keeps running when turned off thermostat supplies power to the Auto setting, it may the! This by changing or ( if possible ) cleaning the air conditioner keeps running anyway few sources heat and from. Or air conditioning units leaks: https: //gabesguides.com/hvac/when-to-replace-hvac-system/ noticed any of the problem the..., rattling, or a complete replacement conditioner when it is the Purpose of an air conditioner unit off! Have to turn off the air temperature in this browser for the air temperature in Phoenix so! I do t do anything levels can cause a cool draft when the conditioner..., sometimes 5min switch was set to 76 there a way i can fix this for. ( if possible ) cleaning the air is blown out ; sometimes just the.... Shut off.I got snow off the heat is not so undesirable, but larger rooms and sunny quickly. It off or turn off A/C fan keeps running non-stop even if you are in such a,! Are problems in your future bills could result in the bottom of system... Loses battery power settings and modes on your heat and cooling down the air conditioner when it.. Have tried 3 different A/C ’ s causing your A/C to run continually notice thermostat... Symptoms, your AC won ’ t turn off a dirty air … so you keep...