It is believed that a broken AC should not be repaired by just anyone but a certified and or trained expert. However, there are a few things we can do before we call in the repairman and this depends on the problem at hand.
For instance, if the AC doesn’t blow in enough air as supposed to, perhaps the situation is with the fan, or rather if the AC doesn’t seem to work, perhaps the power is not turned on. Basically, identifying the problem with your AC is the beginning point of fixing it. However, if it’s too complicated, it is always necessary to bring in the expert.