My air conditioner isn’t cooling very well. What’s Wrong?

Several things could cause this problem:
• Low Freon- An air conditioner system requires a certain amount of Freon to cool properly. If the Freon level is low, the system does not work properly and does not cool well.
• Dirty Condenser- The condenser is the heat exchanger mounted in front on the radiator. It cools the high pressure Freon vapor after it leaves the compressor so it can condense into a liquid. Any substances such as; leaves, bugs, road debris, etc., that may be in the condenser, block the air flow causing the air conditioner to cool less. Keeping the condenser clean should prevent this problem.
• Inoperative Condenser Cooling Fan- When the air conditioner in on, the condenser’s electric cooling fan should turn on and remain on. The fan may not run due to the fan’s motor, motor relay, or wiring being burnt out.
• Air or Moisture Contamination- In order for the Freon to work properly there must not be any air and moisture in with the Freon. Air reduces the cooling efficiency of the system, while moisture can freeze and form ice that causes blockages in the orifice tubes and metering values. Air and moisture contamination may be the result of non repaired leaks in the system or failing to vacuum purge the system prior to recharging it with Freon.
• Blockages- Debris such as, rust in the system can plug up the orifice tube or metering valve that enters Freon into the evaporator. This process is a very important point of the cooling system. If the Freon becomes restricted or blocked, a lack of cooling becomes in affect. This may cause possible compressor damaged as well in systems that rely on oil circulating with Freon for lubrication.
• Mechanical Problem- Air Conditioning system failure like; metering value failures, compressor wear, compressor clutch engaged failure, bad pressure switches, etc. may need a skilled A/C technician’s attention.