alisdair4
Well-Known Member
We have a Webasto Air Top 3500 fitted to Nordlys. This season it has started misbehaving - it starts up, runs for a while (and starts to heat up) , and then cuts out. The manual is not much use - it refers me to a more elaborate control panel than we have on board.
All we have is rotary switch with a selector to turn heat on or off (see below). The rotary switch has a green LED, which, when erroring, produces an error message of 10 long flashes. followed by 5 short flashes. This then repeats; the heater stays off. When the heater is turned off and then restarted, the same thing happens. Can anyone please point me in the direction of what might be wrong?

All we have is rotary switch with a selector to turn heat on or off (see below). The rotary switch has a green LED, which, when erroring, produces an error message of 10 long flashes. followed by 5 short flashes. This then repeats; the heater stays off. When the heater is turned off and then restarted, the same thing happens. Can anyone please point me in the direction of what might be wrong?
