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If you are talking about the larger of the 2 copper lines, the problem could be that the unit is low on refrigerant. Check to ensure that the large line is insulated and not exposed.
The gauge line is secured when the refrigerant cylinder is on the scale while transferring refrigerant to prevent the refrigerant from leaking out. If the refrigerant were to leak out, it would cause the scale to become inaccurate, and it would also be a safety hazard.
the vehicle has a liquid line , & a suction line for the a/c . condensation is what happens when you have moisture in the air
Liquid refrigerant charging of a system is normally accomplished in the liquid line. For example, when a system is out of refrigerant, liquid refrigerant can be charged into the king valve on the liquid line or receiver.
why must refrigerant in the suction line be slightly warmer than the saturation temperture
Refrigerant is added to a 1997 Pontiac Grand Am by removing the cover on the low pressure coolant line and attaching a can of refrigerant. The valve on the can is then opened and the system will automatically pull the refrigerant in.
Unless an air-dryer is installed, condensation will occur in air line. Drain condensation out of compressor daily.
condensation
condensation
condensation
Refrigerant is added to a 1997 Pontiac Sunfire by removing the safety cap on the low pressure cooling line at the rear of the engine compartment. The charging line is then hooked up and refrigerant added until the pressure reaches specified levels.
What temperature should liquid line be on 134a refrigerant