Often when something is wrong with the heating and cooling system, we jump to the conclusion that something is wrong with the unit itself. We fail to take into consideration the core fact that the unit depends on the thermostat for inputs. If the input is wrong, the HVAC will not function as it ideally should. Therefore, the AC will work only as well as the thermostat does. It wouldn’t be far off the mark to say there is a high possibility that the thermostat is causing your cooling trouble.
The Work Of Thermostat
The thermostat is the link between you and your heating and cooling system. The temperature that you desire indoors is fed to the thermostat via a program. The sensors within it judge the ambient temperature, and if it is more than what you programmed, the thermostat sends a signal to the AC to start cooling. The compressor kicks in and lowers the indoor temperature. All this while, the thermostat sensors continuously keep a tab on the indoor temperature. As soon as it reaches the required mark, it sends another signal to the AC to cycle off the compressor. The cycle continues to keep your space comfortably cool.
One thing that must be clear to you now is, the HVAC cannot work independently. It needs the thermostat to tell what needs to be done and when. So, if the thermostat fails in this very core function, the AC will malfunction. Nevertheless, solving the thermostat issue will also solve the cooling concern.
The issue with thermostat problems is that they are very subtle. Until you are looking for them, you will not find them. Even then, it takes a trained eye to access the signs correctly. Although, there are some issues that are quite obvious and can be addressed by the users themselves. The simple rule of thumb is, if it’s something as simple as changing dead batteries, you can do it yourself, but if it’s something more, best call the HVAC technician.
Cooling Problems Caused By A Faulty Thermostat
A faulty thermostat often disrupts the smooth functioning of the AC in the following ways:
1. The AC Stops Working – One of the main reasons the AC stops working is because the thermostat batteries are dead. Typically, we all program the thermostat as per our desire and then forget all about it until something dramatic happens. AC not working is one of those drastic things. At this time, we go to see the thermostat only to realize its display is dead. This happens because the old batteries ran out of juice, and the user did not insert new ones. Changing the batteries will have the display and, consequently, the AC up and running.
Dead batteries are not the only thing that causes dead display. Sometimes the connections within the thermostat become loose and disconnected altogether. This, too, can disrupt the communication with the HVAC system leading to an AC that does not work. In this particular case, it is better to call the technician rather than pick up the screwdriver yourself to reconnect the wires. Do keep in mind one wrong connection can fire the thermostat. It is better to allow a trained and knowledgeable person to handle the situation.
2. Room Temperature Does Not Match The Thermostat Setting – As we mentioned above, a thermostat has embedded sensors that continuously judge temperature and humidity. Accumulation of dust and grime over the sensors can hamper their working, in which case, they cannot judge the temperature correctly. Until they are cleaned, the problem will persist.
The other issue could be, the thermostat location was not chosen wisely. If you install the thermostat near electrical appliances or near a window, etc., it will impact its accuracy. Relocating the thermostat to an ideal place is the only solution.
An accidental bump with the thermostat or its poor installation can lead to calibration issues. A trained HVAC technician can help solve the problem by correcting the installation and recalibrating the thermostat.
3. AC Runs Continuously Or Short Cycles Often – An AC that runs continuously or short cycles often has compromised efficiency. It can occur due to dirt on contacts inside the thermostat and also because it is not level. In both scenarios, you will require a technician’s help.
Calibration issues with the thermostat also cause frequent short cycling. Recalibration is the work of an expert. The technician will increase the cooling cycle by turning the anticipator arm in step by step increments in the direction marked for a “longer” cycle on the dial until satisfied. This is known as recalibrating the thermostat.
Ensuring Thermostat Is In Top Working Order
There are two things that you must do to ensure that your thermostat is in top working order:
1. Make sure that your AC receives annual servicing or maintenance. As a part of the maintenance routine, the thermostat, too, will be given a thorough once over. It will be cleaned, old batteries replaced, and all loose connections will be tightened. A well-maintained thermostat should not give you any trouble.
2. Do visit your thermostat from time to time to check the battery indicator. Swapping drained batteries well in time will save you from discomfort.
Thermostat malfunctions are something that one should never overlook. These, too, are machines that need care. Moreover, nothing ever escapes the clutches of dust, so do ensure its cleanliness. The more you take care of the thermostat, the better it shall function.
West Palm Beach residents, building managers, and office complex owners can contact Aztil Air Conditioning for any and all HVAC troubles. We excel in providing top-notch services at affordable rates. Our 100+ strong team of technicians are certified and experienced in working on all residential and commercial heating and cooling systems. We provide a whole host of HVAC services, so you don’t have to look elsewhere when the time comes. To ensure your comfort and safety, we provide 24/7 emergency services. To book an appointment, simply call us at +1-888-729-8452 any time.