Common Problems of Air Conditioners


Knowing the most frequent air conditioner problems and how to fix them may save you both time and money. AC Cleaning, maintenance and regular inspections can help you avoid having to deal with air conditioning repair concerns. Here are 20 of the most common issues that affect air conditioners.

Problem 1 

Electrical issues: There is no power and the air conditioner does not work.

The most prevalent worry when beginning an air conditioner troubleshooting evaluation is that you will switch on your unit and hear nothing. This can be entirely caused by malfunctioning electrical parts and wiring defects, or it might be caused by anything as simple as a blown fuse or tripped circuit breaker. You must reset it on the circuit breaker panel whenever this occurs. If your air conditioner still won't turn on, you could have a problem with the thermostat. In some circumstances, the blower belt may be the source of the problem.

Problem 2

Electrical Issues: The Air Conditioner Doesn't Turn Off

It's possible that the collection of grit and filth in your AC filter is the result of your air conditioner operating repeatedly and failing to achieve a predetermined temperature. This issue might result in frozen AC coils; frequent AC maintenance is the best way to avoid this.

On the other hand, if your air conditioner can cool to the proper degree but keeps running all the time, there might be a problem with the settings. If you're having difficulties shutting off your air conditioner, check your thermostat and relay switches. To resolve this issue, you will most likely need to replace your thermostat.

Problem 3

Electrical Parts Issues: a faulty connection

Various electrical cables give current to different components of your air conditioner's system. Because of normal wear and tear, wires might lose contact with the power source or the components over time. When connections become loose, current can flow to the afflicted parts, causing severe harm.

Problem 4

Electrical Parts Problems: Loose Wiring or the Wrong Fuse

When your AC wiring fails, the electrical cables get more current than usual, resulting in a short circuit. This tragic situation might not only harm your equipment, but it can also result in a fire danger. Capacitor performance is degraded or fuse difficulties are caused by worn-out wires or wiring issues. When you switch on your air conditioner, faulty wiring might trip the circuit breaker. In other circumstances, poor wiring or a blown fuse may prevent your air conditioner from turning on at all.

Problem 5

wires that have come into contact with water

If you have a naked wire surrounding your air conditioner, it might pose a fire danger or even electrocution. A person can be electrocuted if they come into contact with a live wire. Make sure your system doesn't have any pinched or stripped cables. These wires can sometimes be hidden behind buildings or paths, making it difficult to locate them in time to avoid an accident. To ensure that everything is secure, professional experts may check for any damaged or concealed cables.

Problem 6

AC Capacitor problem

While the compressor is working, capacitors cycle on and off a thousand times every second. The compressor's life expectancy is directly proportional to the capacitor's age.

If your air conditioner's capacitor is malfunctioning, you should contact an AC service expert immediately. To match the AC motor, he may replace it with a capacitor of the same rating as the one that arrived with your system.

Problem 7

The circuit breaker is tripped by the AC.

The true issue is generally the breaker, not the air conditioner. Many wires connect to the switch, and with time, they become damaged. Sometimes the breaker has an issue and has to be replaced. When your circuit breaker continues tripping, your air conditioner is put under a lot of stress, which can lead to compressor failure. When this happens, the entire air conditioning system fails. Check the breaker on your air conditioner to see if it needs to be replaced. 

Problem 8

The AC contactor should be replaced.

The contactor is a switch that is situated in the AC unit's outside section. This device consists of a metal plunger, a control coil, and one or more sets of electrical connections. This switch regulates the temperature of your air conditioner by turning it on and off as needed.

Over time, AC contactors can wear out and produce performance concerns. Even if the AC contactor is in good working order, changing it every few years can help to extend the life of your air conditioner.

Problem 9

Problems with the thermostat

You'll have problems switching to your air conditioner if your thermostat is broken or incorrectly adjusted. Calibration issues are more common with dial-type thermostats, although modern programmable thermostats can also be difficult to programme. Before you begin air conditioning troubleshooting, check your thermostat handbook to ensure that you have setup your thermostat correctly.

If your thermostat is adjusted to the lowest setting and the unit still won't turn on, it's time to contact a professional AC repair business. The thermostat will very certainly need to be replaced.

Problem 10

Condenser Issues

Condenser failure is caused by faulty tubes and leaks inside seals. A competent technician can replace these tubes after a long period of usage and get your AC working again.

Condenser difficulties are frequently caused by unwanted particles and trash. Your air conditioner's coil is full of refrigerant. Like a sponge, it absorbs the heat from the surrounding air. If the airflow is disrupted, the evaporator coil becomes abnormally cold and a film of ice forms on the exterior. The AC will blow warm air or no air at all if the condenser is malfunctioning.

Problem 11

Low Refrigerator power 

Low refrigerant means low pressure, which leads to low temperatures and the evaporator coil freezing. Most of the time, a leak is the sole reason your air conditioner is running short on refrigerant. This problem can only be detected by skilled and certified AC specialists, so don't try to fix it yourself. Call our expert technicians to fix them up.

Problem 12

Ducts that are leaking or are filthy

The cooled air from your air conditioner is carried throughout the area through ductwork that runs through the ceilings and walls. Careless employees or rats can sometimes cause fractures or holes in the ducts, trapping pricey cooled air within your walls. Ducts that are dirty or leaking will make your air conditioner work harder and cost you more money.

Problem 13

The filter is filthy or clogged.

Your air conditioner overheats if the filter in your HVAC system is dirty or clogged. Your air conditioner has to work harder to overcome the issues caused by a clogged filter. Your air conditioner warms up more effectively as the strain on it increases. When your AC filters are dirty for an extended period of time, your air conditioner will use more energy, increasing your power expenses.

However, you can quickly clean your furnace filter by removing it. After removing it, carefully clean the filter by washing it in warm water. Check to see whether the air conditioner is cooling the area by drying and reinstalling the filter. If the problem persists, a new filter may be required.

Problem 14

Filthy Fan Blades Cause Air Flow Issues

Pollution and fog can cause problems for your AC system, particularly the fan on your outdoor unit. If the blades of your AC fan become dirty, the fan's speed will be reduced dramatically. Dirt and filth may put a burden on your air conditioner's engine, causing it to break down. Clean your AC fan blades on a regular basis because dirty blades can cause airflow problems.


Problem 15

AC Air Flow Issues: Motor Parts That Have Been Damaged or Worn

If your air conditioner's fan does not turn on when you turn it on, you have a defective motor. This problem occurs when your air conditioner runs without the fan moving air, causing the evaporator coil to freeze. As a result, your air conditioner is more likely to be damaged. Turn off your air conditioner and call our professionals if you suspect a damaged motor.

Problem 16

Debris should be removed from the area around the outside unit.

Your air conditioner's lifespan might be extended by cleaning the exterior unit. You may also remove any twigs, branches, or leaves from the outside unit as part of your AC's normal maintenance. Ensure that any bushes and plants are kept away from your air conditioner to maximise airflow and performance.

Problem 17

Unusual Sounds

If your air conditioner continues to make loud and odd noises, you'll need to figure out what's causing the problem. This sound resembles a whine or a whistle at times. Airflow difficulties might be the source of these troubles, so examine your air conditioner's ventilation ports.

It's possible that the unpleasant noise is caused by operational inefficiency, which will raise your energy expenditures. You can take care of your AC's strange noises with regular AC maintenance and examination.

Problem 18

Difficulty of Drainage

Debris and grime clog your air conditioner's drainage line, preventing condensate from draining properly. The water does not move outwardly when this happens, and it overflows into the central air conditioning unit. As a result, your air conditioner begins to leak water. If you clean your air conditioner on a regular basis, you may avoid this problem.

The drain pan is located beneath your interior air handler and collects any moisture produced by the air conditioner. When your unit is turned off, you may inspect your drain pan and pipe for any debris or filth. The condensate is usually discharged outside through a pipe that links to the drip pan.

Problem 19

Your electric bill has increased suddenly.

Your thermostat may malfunction from time to time, causing your power expenses to rise, especially during the winter months. Furthermore, defective equipment and systems can significantly increase electricity expenditures. If you neglect to follow your air conditioner's maintenance regimen, you may never know if you need to repair or replace any components. Regular inspections can assist you in identifying the flaws that are causing your power bill to double.

Problem 20

The size of the air conditioner

Air conditioners come in a variety of sizes and shapes. Choosing the proper size for your air conditioner will make it easier to maintain. Professional technicians can help you choose the proper size of your air conditioner since they are familiar with the aspects that will help you select the ideal model.

A larger size, for example, is not always the best option. If you put a large-sized air conditioner in a tiny location, it could cycle on and off too rapidly without effectively eliminating humidity from the air. As a result, you will feel moist rather than frigid. On the other hand, if you pick a size that is too small for your room, the unit will use more energy while failing to provide adequate cooling. Hence, the appropriate size of air conditioner is determined by the demands of your area and the frequency with which it is used.

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