A/C System Was Left Open to the Environment for an Extended Time

Ambient moisture entering the air conditioning system has depleted the receiver/drier desiccant. Debris might have entered the end connections of the open components. Perform the following:

• Replace the components that have end connections that were left open.
• Vacuum A/C system to remove any moisture potentially trapped.
• Replace the receiver/drier desiccant bag if any of the following conditions occur:
  • Refrigerant circuit is open for >20 minutes.
  • Amount of refrigerant extracted is < 30% of the required quantity.
  • Refrigerant circuit has been open for an indefinite period of time (gradual leak, exterior damage to condenser).
• Recharge the refrigerant.