Is your air conditioner Cooling to the Set temperature? If this is a problem that you are having in your home, the first thing that you may want to do would be to shut off the unit. Next, you should consider calling an expert in for help if you are worried about subjecting yourself to potential dangers in the event that you make a mistake. Taking on the task of fixing this issue would not be very difficult when you understand what it is that you should do and what may be leading to the issue. However, only you would be able to determine exactly how comfortable you are with attempting to address your unit problems without the knowledge of someone that has been working in this field for decades. No matter what problem you may come across, they have likely seen it and fixed it hundreds of times in the past. As such, this would always be the quickest way to get the benefit of cool air back into your home as quickly as possible. However, it would also be possible for you to simply have a look at what could be causing the issue and use this as your indication of what you would like to do in order to proceed. If the set temperature is not what you are experiencing within your environment, this could be caused by a variety of different things. Finding out the route of the problem is going to be the only way to solve it from containing to impact your experience in the future.
It is possible that the read of the temperature on the system is simply not accurate, you could determine that by setting up a stand alone device near the unit and waiting to get a reading. Once you have this number, you would need to compare it to the setting that you have selected on the machine. If you find that it still does not sync up as it should, this would be a sign that there is a problem that you are going to have to address. One reason that they may not be in line is the fact that you have not performed any maintenance of the system for a long time. Simply taking out the filer on a regular basis and making sure that it is clean would go a very long way in giving off the cool air that you are expecting. If you know that being mindful of the filter is not something that you practice, this should be one of the first things that you attempt in order to solve the problem. Simply run it under warm water and you will begin to see the dirt fall into the sink that you are using, you would then put the filter back in place and restart the ac. If this does not solve the issue, you want to look at the coolant levels and check for a potential blockage that could hinder proper operation.