Is the Air Conditioner not working? Problems and solutions

Is the Air Conditioner not working? Problems and solutions

Are you facing your AC not working properly or making whirring noises constantly?

If yes, then it’s time to delve deeper into the problem and find a workaround so that you won’t have to call a technician and spend bucks every time. Most air conditioners have a lifetime of 10 years so that you won’t face major problems often. Whatever problems you will come across will be meagre. With a little knowledge and smartness, you can solve it by yourself. 

For this reason, we have listed some of the major problems that you can face with the air conditioner. Besides discussing the problems, we will also work on the solutions for these issues and whether you need a technician or not. 

1. The air conditioner is not turning on 

Cause

Sometimes, the air conditioner is turning on despite the main power switch being in the ON mode. There is a myriad of reasons that can explain this problem. For example, if the thermostat’s batteries are dead, the appliance won’t respond to the power on mode. Sometimes, the thermostat settings can affect the operation of the appliance. In extreme cases, excessive current flow in the AC can cause the circuit breaker to go off, and therefore, further current flow is blocked. 

Solution 

First of all, replace the thermostat batteries and switch on the appliance. If it doesn’t work, check its settings and ensure that the cooling mode is on. These two solutions are applicable only for the central air conditioning system. As for the split ACs, check the remote’s batteries and the mode selected in them. Besides, you should also check whether the circuit breaker is in an active state or not. 

2. AC is taking too long to release cold air 

Cause

Sometimes, the air conditioner may take too much time to cool down the room or release cold air. This can happen due to blocked condenser and evaporator coils in the outside unit. Also, suppose the compressor is not working properly. In that case, the AC won’t cool down the air quickly as per the expectations

Solution 

If you are facing this problem, check whether the condenser and evaporator coils are leaking refrigerant or not. Low refrigerant will impact the compressor, and it won’t reduce the temperature of the room’s air like expected. Also, make sure that the compressor is working fine, especially in products with a rotary compressor. 

3. The outside unit has frozen 

Cause

Sometimes, the outside unit, especially the evaporator, can freeze in the colder season. In such a case, the refrigerant won’t circulate once you turn the appliance on. Therefore, there will be no hot air coming out of the AC if you have installed a heater or air conditioner. 

Solution 

If the evaporator coil or the refrigerant has frozen up, you need to open the outer box case. Once done, take out the evaporator coil and let it thaw for at least 24 hours. You can do this by keeping the appliance switched off for a full day. Defrosting the evaporator will help you recharge the refrigerant once again so that the appliance can function perfectly, right according to the way you have expected. 

4. AC making unexpected and weird noises

Cause

This is one of the major problems that most people face. Here, the air conditioner starts to make weird and unexpected noises. Be it the whirring sounds produced when the internal fan is operated at a high limit, or continuous clicking sounds being often produced after periodic intervals, the appliance is not functioning normally. Nowadays, air conditioners are made to operate silently and thus, if you can hear weird noises, it’s obvious that something is wrong with the appliance. 

Solution 

Open the front or inside a casing of the air conditioner and remove the mesh filter screens. Once done, check the fan’s blades and whether they have formed rust or not. Sometimes, the axle the fan rotates becomes stiff, and the noise is caused by friction. Use a lubricant to make sure that the fan blades can rotate easily. Also, suppose you are hearing clicking sounds. In that case, the capacitor inside the air conditioner is faulty and needs a replacement. 

5. A mist is released post turning on the air conditioner

Cause

Sometimes, you can see that turning on the air conditioner will blow a mist or dust into the room. This mainly happens when the filters are blocked with huge layers of dust accumulating inside the appliance. In addition, there are times when the mist’s intensity will increase as you increase the fan’s speed. This signifies that the blades of the fan and the wings are covered with dust. 

Solution 

If you are facing this condition, open the inside casing of the appliance. Make sure that the appliance is turned off and the switch is disconnected from the power outlet. Slowly remove the filters and use a brush or a wet rag to clean the accumulated dirt. Let it become dried before putting them again inside the AC. Before you do so, use a simple brush and wipe the surfaces of the blades so that the fan can operate easily. 

Also Read: How Is AC Service Done At Sarvel Cool Tech?

6. AC’s sensor is not responding to the controls

Cause

There are times when your air conditioner won’t respond to the thermostat settings or the button you are pressing in the remote controller. This mainly happens due to the sensor not working properly. Due to faulty sensors, the appliance can’t understand and process the commands given and thereby starts to work anomalously. 

Solution 

As sensors can’t be replaced easily, it’s much better to get help from a professional. They know about the circuit connections, various elements present in the circuit board and their working. Therefore, replacing or repairing the sensors will become much easier. 

Also Read: Air Conditioning Maintenance Checklist for Winter and Summer

Conclusion 

Now that you are aware of the different problems one can face with the air conditioner, we are certain that you won’t have any problem detecting what the issue is. If it is small, you can repair or fix the problem yourself. However, suppose the problem is related to complicated parts like the motor, electrical connections, PCBs, and more. In that case, it’s better to opt for a professional AC repair and maintenance service

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