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 Unit Resistor Test

1. Connect ohmmeter leads to resistor wire terminals.
2. With control lever at 65, resistance should be less than 390 ohms.
3. Slowly move temperature control lever to right until ohmmeter reading is 930 ohms. Ohmmeter reading should increase smoothly and temperature lever should be near the 75 setting.
4. Move temperature control lever to 85. Ohmmeter reading should smoothly increase to at least 1500 ohms.