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

HVAC Controller Bulbs

REMOVAL
1. Remove radio bezel.
2. Using small flat bladed screwdriver, turn 1/4 turn counterclockwise and remove bulb.

INSTALLATION
1. Using small flat bladed screwdriver, turn 1/4 turn clockwise and install bulb.
2. Install radio bezel.