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. Disassemble the heater control component.

2. Check for continuity between the terminals of heater control unit by using an ohmmeter.
3. Verify that there is continuity between terminals J and L of the heater control unit connector.

4. Apply battery positive voltage to terminal N and ground to terminal E, G, I, K, M and verify that the following indicators turn on.
5. If not as specified, replace the heater control unit.