Reading Webasto Fault Codes

Webasto Heaters:
Webasto heaters come with either a manual thermostat (rheostat) controller or a digital multi-controller.

• Manual Rheostat:

  • The heater will flash 6 slow flashes, followed by one or several slow flashes, and then 6 quick flashes.

  • Count the slow flashes, as they correspond to the fault code.

• Digital Multi-Controller:

  • Fault codes are displayed directly on the screen, making them easy to read as soon as they appear.