Dometic CFX5 App Cannot Control Cooler Prep

Use this official Dometic source when the CFX5 app cannot control the cooler before contacting support or choosing a model-specific guide.

Owner-safe checklist

Record the CFX5 model, app version, phone operating system, current set point, app connection state, and what controls do not respond.
Save screenshots of the app control state, photos of the cooler label and display, and the official Dometic support title you matched.
Do not repair internal cooler electronics yourself; shut the cooler down if it overheats, smells unusual, or keeps showing alerts, then use Dometic support or qualified RV service.