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

Ambient Temperature Sensor / Switch HVAC: Service and Repair

Outside Air Temperature Sensor Replacement

1. Remove the outside air temperature sensor (A), then disconnect the 2P connector (B).
2. Install the sensor in the reverse order of removal.