1. Dirty air filter
The most common fault for an air-conditioner not producing cold air will be a dirty air filter. Dirt builds up on the filter over time, which in turn restricts the air flow through the filter. To prevent this problem from happening you should clean the air filters a every 2 months for the best results.
2. Refrigerant leakage
If your air-conditioner is low on refrigerant, simply adding refrigerant may not be the best solution. You should get a trained technician to fix any leaks. Ensure that the repair is tested and then recharge the system with the correct amount of refrigerant. Remember that the performance and efficiency of your air-conditioner is best when the refrigerant matches exactly what the manufacturer's specification are. Refrigerant leaks can also be harmful to the environment.
3. Incorrect air conditioner size
It is important to make sure that the right size air-conditioner is installed. The air-conditioner should never be too small for the room, which will results in the room not being effectively cooled. If the air-conditioner is to small you will overwork it and result in the air-conditioner breaking down.
4. Frozen condenser
Low Freon, or anything that interferes with air flow, can cause a freeze-up. Changing the air filter or cleaning the evaporator and condenser may completely solve your air flow problem. If everything is clean, you will probably need to get a air-conditioner technician out to solve the problem.
5. Broken thermostat
The thermostat measures the temperature of the air, which then controls the temperature at which the air conditioner turns off in order to prevent energy wastage. When the thermostat is broken, the air conditioner will not be able to function properly, and should be replaced.
6. Dirty evaporator and condenser coils
The components that make heat transfer happen are the evaporator and condenser coils. Since these coils are continuously exposed to both indoor and outdoor fan-driven airflow, they will accumulate layers of dirt and dust. The passages inside the evaporator coil are constantly damp with condensation, which is a perfect breeding ground for airborne mold. Mold growth inside an evaporator coil can eventually obstruct airflow through the coil. You should get a trained technician to clean the evaporator and condenser coils.
To prolong the lifespan of your air-conditioning, it is advisable to engage the services of a professional serviceman.
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