1. Faulty wiring
Shotty, haphazard or uncertified A/C wiring is risky and a possible fire hazard. Bad wiring can prevent the system from getting power or can trip the circuit breaker.
2. Low refrigerant
Refrigerant is the chemical that cools the air within your air conditioning system. Reduced levels of refrigerant could imply a leak or problem with the refrigerant system. If your air conditioning system needs to be recharged with refrigerant, 90% of the time that suggests there is a leak. All refrigerant leaks should be located and repaired. To read about the phase out of R-22 refrigerant in the United States, we highly recommend you to visit the U.S. EPA website.
3. Outside fan is not working
The outside fan is responsible for conveying the heat from your your city home to the outside air. If the fan on the outside unit doesn’t perform correctly, proper heat transfer cannot take place and the air conditioning compressor may overheat and trip the safety overload. Worse yet, it may cause internal damage to the compressor.
4. Outside unit not functional
This usually indicates a lack of power, contactor problems or even a faulty thermostat.
5. The coil is frozen
A frozen coil often indicates an issue with the airflow, such as restrictions caused by filthy air filters or obstructed return air ductwork. Frozen indoor coils could also be the result of low refrigerant.
One of the typical reasons air conditioners don’t work properly is a clogged or dirty filter. Follow the manufacturer’s suggestions as to how often to change your air filter. Some are monthly, others every three months, while some are reusable and should be cleaned when they are dirty. One way to determine if a filter needs to be cleaned is to check if any light passes through it. If not, it’s time to clean it. Dirty filters not only reduce the flow of air but can also cause the AC unit to freeze.
Another easy fix is to make sure your thermostat (which controls the temperature setting in your home) is turned on, the inside is clean, it’s level, it’s not being affected by sunlight, and it’s on the correct setting. If problems persist, there may be another issue.
8. Refrigerant Leaks
When the coolant starts leaking in the air conditioner, the unit will not perform correctly, and the temperature will fluctuate. The location of the leak will affect the cost of the repair so having this examined yearly by a trained AC technician is advised.
Like the filter, the drain line can become clogged with dirt, dust, and lint. If it becomes clogged, the drain pan will fill up, and water will leak out potentially causing damage to the AC unit or whatever is around your pan.
10.Breakers or Fuses
The breakers and fuses safeguard the AC unit’s motor or compressor from overheating. Often when a motor dies, one of the first parts the HVAC technician checks is the breaker.
Without capacitors, the motors that power the compressor and fans won’t work. The start capacitor sends a jolt to activate the motor, while the run capacitor provides a series of jolts to keep the motor working. The AC unit won’t run efficiently if either burns out.
The compressor applies energy to the refrigerant and propels it through the coils to carry out heat exchange. If the compressor is not working, the AC unit will not cool your house. If there’s not enough refrigerant, the compressor will run hot and eventually seize. If there’s too much, the refrigerant will return to the compressor, which can cause it to fail.
13. Evaporator Coils
Evaporator coils absorb heat in the air and send it back into the house as cold air using a series of air ducts. Coils can become corroded, but if they are located inside, they typically only require maintenance every three years.
14. Condenser Coils
Condenser coils are located outside with the compressor so they can become dirty due to the elements. They can usually be cleaned with a water hose once a year, but if they get too dirty, an HVAC technician will have to clean them with a chemical cleaner.
15. Worn Contactor
In an AC unit, there are contactors for the compressor, the blower motor, and the condenser fan motor. They make an electrical connection that starts the motors and compressor. If there’s arcing and pitting on the contactor, it becomes difficult for electric current to start the motors.
Best practices suggest that the most effective way for your city area homeowner to prevent these expected problems is by participating in a preventive maintenance program. Bad wiring, low refrigerant, and airflow problems can be discovered during routine maintenance tune-ups.
For Quality Air Conditioning repair in Muscat Oman please contact +968 72444424. To know more please contact Resfix Support Team