Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Quick Checking of Refrigerant Charge - Air Conditioning

Quick Checking of Refrigerant Charge
The following procedure can be used for quickly checking whether the A/C system has a proper charge of refrigerant or not.

Run engine at fast idle, and operate A/C at its maximum cooling capacity for a few minutes.

Then, look at the sight glass (1) on condenser outlet pipe (2) and compare what is observed with the symptoms listed in the table.

Step 1 - 3:

Checking Refrigerant Charge