Actions In Event Of Faults; Heater Unit Cuts Out Automatically - Webasto Air Top 2000 ST Operating Instructions Manual

Actions in event of faults

If an error occurs, first check the fuse and plug connections to ensure that they are in proper
condition and connected correctly.
If the actions described below do not rectify the error, have the heater checked by Webasto-
trained personnel.

Heater unit cuts out automatically

Cause
No combustion after
start and repeat start
Flame extinguishes during
operation
Heater unit overheats and indica-
tor flashes
Vehicle voltage too low
Heater unit emits black smoke
Cause
Combustion air and/or exhaust
system blocked
Remedy
Switch heater unit off (for at least 2 seconds) and then
on again
Switch heater unit off (for at least 2 seconds) and then
on again
Make sure that hot air can flow freely,
allow heater unit to cool down,
Switch heater unit off (for at least 2 seconds) and then
on again
Charge battery
Switch heater unit off (for at least 2 seconds) and then
on again
Remedy
Check combustion air and exhaust system for blockage