If the display shows "F" followed by two digits (e.g., F01), this is a fault code. Refer to the Webasto 1533 Manual to identify the specific issue. Webasto Oval Timer 1533 Operating Instructions Manual
While the number is flashing, use the to select your start time. minitaimer vebasto instruktsiia
Run the heater for at least 15–20 minutes once a month, even in summer, to prevent the fuel from "gelling" and to keep the burner clean. If the display shows "F" followed by two digits (e
You can change how long the heater runs (10–60 minutes) by pressing and holding the Set button while the flame symbol is displayed, then using the arrow buttons. Run the heater for at least 15–20 minutes
Wait for the display to stop flashing; the program is now active (the corresponding number will stay visible on the screen).
Press the repeatedly to choose the desired program number (1, 2, or 3).