Reading Webasto Fault Codes
Webasto heaters will come with a manual thermostat(rheostat) controller or a digital multi-controller.
Manual rheostats will flash 6 times slowly, then once or several times slowly, and once again 6 quick flashes. You need to count the slow flashes and they will correspond to a fault code.
Digital multi controllers will have fault code output which can be easily read on the screen of the controller as soon as it pops up.
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