Auto Repair Encyclopedia

Air Conditioning Recharge

Sometimes referred to as AC Recharge, Air Conditioning Recharge, Recharge

It may be necessary to recharge the air conditioning system refrigerant if the system has lost its cooling efficiency. Before any AC system repairs are performed, the system must be free of moisture and contaminates and leaks should already be repaired.

To recharge the AC system, gauges are attached to the AC system to measure pressures in the system, and refrigerant is added as needed.

AC systems should be worked on only by competent, trained personnel.

About this Repair: AC Recharge

What to watch out for
  • Merely adding refrigerant to a poorly functioning A/C system without first diagnosing the problem may result in overcharging and damage to the A/C Compressor.

Recommendations
  • We recommend always adding leak detection dye when recharging the A/C to assist in finding refrigerant leaks.

Why this happens
  • A/C systems may require recharging when they become weak and do not perform well, or start to make unusual noises.

  • "Stop leak" compounds are not recommended, as they are temporary solutions and can damage AC components, resulting in an expensive repair.

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