The AC may be functioning but the constant noise coming from the AC is getting out of hand. The most probable reason for an AC making noise would be improper mounting or installation of the AC.
|Duration||30 mins - 1 hour|
|Turnaround Time||2 hours|
service was ok but late
There can be several reasons behind a noisy air conditioner. The noise from your AC is a clear indication that something is wrong inside the AC unit that needs repair. Ignoring the noise from the AC may worsen the problem to a point where it cannot be fixed or where fixing it will be an expensive affair.
Types of noises an AC makes are:
Worn out compressor
A very common reason behind “AC making noise “problem is a defective compressor. Air conditioner compressor is almost always noisy. If the compressor of your AC is making an unusual noise or is noisier than it used to be, it might be worn out or wearing out. So if the compressor is more noisy than normal, it’s time you need to pay attention. Screaming sound is very dangerous. It indicates that there is a problem of internal pressure in your AC unit. If you hear a screaming sound from your AC, turn off the AC unit immediately.
Obstruction in fan
There is one fan at the front end and one fan at the rear end in an air conditioner. For a fan to work properly, it must be kept clean and regularly maintained. If your AC makes a humming or rattling noise, then the fan blades need to be checked. Remove any debris you see on or around the blades. In some cases during AC service, insulation or other items may fall into the AC unit and produce crackling noise due to the movement of the blades. If the problem is not debris or dust, then check to see if the blades itself are loose. If so, then blades need to be tightened. Sometimes the fan blades bend slightly and touch the adjacent component of the AC unit which produces noise.
Faulty fan motor or driver motor
If the AC is noisy the fan motor, also called a dual shaft fan motor, might have gone bad. In an AC the fan motor has bearings which needs to be permanently lubricated. Over several years of operation the lubrication in AC bearings may break down making the motor loud and noisy. The fan motor is usually not repairable and will need to be replaced if it is noisy.
Defective motor belt or bearing
Sometimes you hear a screeching or screaming sound from your AC. This noise indicates a bad belt or motor bearing problems. AC belts are not normally an expensive repair. Defective motor belt is a common reason behind AC making noise problem.
Faulty thermostat or start capacitor
If you hear a crackling sound from front end of AC, then the thermostat might be defective. When the AC is switched on it makes an audible click at the time of start. Your AC makes this clicking sound as the thermostat sends a signal to the start capacitor to trigger the compressor. However if there a constant clicking sound then either the thermostat or the start capacitor has gone bad.
Coolant leakage due to ice formation on AC
Ice formation on AC is a common problem. When this freezing is the result of refrigerant leakage, a buzzing sound is heard from the AC unit.
An AC is a complex machine of moving part working together to produce cool air. During years of operation, some parts become loose or go bad which may produce noise from your AC.
These are some common reasons behind AC making noise problem but there can be other reasons as well.
The PRO visits clients site and troubleshoots the problem of AC making noise. The PRO first looks for basic reasons like obstruction in fan or loose parts. Later the PRO checks the key components of the AC like compressor, condenser, coolant, thermistor, start capacitor, sensor and others. After the actual problem is identified, PRO describes the problem to the customer and suggests a possible repair or replacement. On customer consent, the PRO repairs the AC.