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

Functional Tests

1. Verify transmitter battery voltage and connection integrity by depressing the transmitter button. The red LED indicator should glow.
a. if no LED indicator response - remove garage door transmitter, check for B+ at orange wire and ground at black wire.
b. If power and ground checks OK, replace transmitter.
c. If no B+ or faulty ground is found, check circuit, following wiring schematics in Lighting and Horns /Interior Lamps. Lighting and Horns