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)

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Control Assembly: Testing and Inspection

1. Connect the vacuum tester to black color hose of the vacuum connector.
2. Connect the vacuum hoses to mode control switch.
3. Clog the vacuum port far fresh/recircle control switch.

4. Check for vacuum hiss from the mode switch and vacuum hoses. and inspect for air flow between each hoses when the mode switch is at the each positions.

NOTE: "V" : make air flow with black hose.

If air flow is not as specified. replace the mode switch.