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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

System Check - Compressor Controls

System Check Table:

System Check
1. Complete the A/C System Check as a guide to normal operation of the entire A/C System and for references to diagnostic tests.

2. Use the System Check Table as a guide to normal A/C Compressor operation.

3. Refer to System Diagnosis when a result is not normal.

System Diagnosis
1. Use the Isolation Test to choose the proper diagnostic test.

2. Tests follow the Isolation Test.