It is on the hottest day of the year that you notice that your air conditioning unit is struggling and not working optimally. In some cases, the equipment might be faulty but in most cases, the system is poorly maintained and hence it is performing poorly. Before your unit stops working, it helps to know the common AC problems and how to fix them.
1. Low Refrigerant
Refrigerant refers to the stuff the air conditioning unit uses to cool your home or office. Once in a while, the system will develop leaks in the refrigerant lines. In the end, you will find that the system does not have enough refrigerant to cool the air. Replacing the refrigerant is not an effective solution to the problem because it will still leak. The solution is to call an HVAC technician to find and fix the leaks.
2. Fan Problems
The air conditioning unit has a fan that is responsible for blowing hot air over the evaporator coils which then cools the air. There is also another fan that blows air over the condenser so as to repel heat that it had absorbed. There are a number of reasons why the two fans are not working properly. Probably the motor is faulty, they are not well lubricated or the belts are worn out. Whichever the reason the end result is poor air flow.
3. Strange Noises
Sometimes you will notice that the unit is making some strange noise and that could be an indication of a problem. If you hear a squealing sound it could be that the belts are misaligned or worn out. If there is a grinding noise it could be an indication of a problem with the motor bearings. A rattling noise could be from the panels and they need to be tightened.
4. The Unit is Constantly Turning Off and On
If the unit keeps turning on and off, it is an indication that there is a problem. It could be that the condenser unit is blocked or dirty, it could also be an indication of a dirty evaporator. To fix this problem you should clean the entire unit to make sure it is clear from debris.
5. Some Rooms are Warmer
This is a common problem and it is an indication that the system is not balanced. You can use dampers to balance the system so as to cool all the rooms uniformly.
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