Checking The Refrigerant Volume In The System

Check the refrigerant volume in the system

Check the refrigerant volume in the system
An observation window in the receiver drier is used to check the volume.





Is the window clear?

Yes - Fault-tracing information

No - Fault-tracing information

-------------------------------------------------

Fault-tracing information
Engage the air conditioning (A/C). Check the temperature in the intake and outlet hoses.

Is the outlet hose warm? Is the inlet hose cold?

Yes - No Fault Found

No - Fault-tracing information

-------------------------------------------------

Fault-tracing information
There is too little refrigerant in the system. Top up the refrigerant according to Filling with refrigerant Filling With Refrigerant.

Continue - FAULT FOUND

-------------------------------------------------

Fault-tracing information
If the observation window is full with foam and bubbles, the pressure in the system is insufficient. There is too little refrigerant.
Check the pressure. Top up the refrigerant according to Filling with refrigerant Filling With Refrigerant.

Continue - FAULT FOUND

-------------------------------------------------