Webasto Air Conditioner Fault Codes

Webasto Air Top 2000 Fault Codes

SymptomProbable CauseCheck and Correct
No FunctionElectrical wiring, fuses Control unitFuses
Battery connections
Power at heater red wire and ground at heater brown wire Visit your authorized Webasto dealer or distributor
1X Flash (F 01) No start no combustion after start and repeat startFuel SystemFuel level
Combustion air BurnerType of fuel being used Replace Fuel Filter
Fuel line connections (air bubbles in fuel lines)
Air Intake or exhaust, restocked or plugged
Visit your authorized Webasto dealer or distributor
2X Flashes (F 02) Flame out during operationFuel supply (shortage of fuel) BurnerRestriction in fuel system Fuel filter - Replace
Fuel line connections (air bubbles in fuel lines) Type of fuel being used
Visit your authorized Webasto dealer or distributor
3X Flashes (F 03) Low voltage for more than 20 secondsElectrical systemLoad test batteries Corrosion at connections Loose connections
4X Flashes (F 04) Flame sensor permanently hotVisit your authorized Webasto dealer or distributor
5X Flashes (F 05) Flame sensor
6X Flashes (F 06) Temperature sensor
7X Flashes (F 07) Fuel metering pump
8X Flashes (F 08) Combustion air fan
9X Flashes (F 09) Ceramic igniter
10X Flashes (F 10) Temperature limiterOverheat conditionMotor obstruction, air flow blocked or ducting damage

Webasto WBCC Series Air Conditioner Fault Codes

Foult Code Solution
AAPersistent low voltage (below 195 Volt for more than 5 sec.)
ALow pressure cut-out compressor
A01Not enough refrigerant in the system, please inform service station.
Sea water temperature in heat mode too low (<7°C), heat mode not possible.
A02High pressure cut-out compressor
Sea water circuit interrupted, please check circuit
Too much refrigerant in system, please call service station.
Sea water temperature in heat mode too high (>17°C), heat mode not possible.
A03-A08Room temperature sensor (external or internal) defective or absent
A09Temperature sensor at evaporator defective or absent.
A10All compressors have been deactivated. Re-activate with the code menu
CA11 (EA11)Compressor stopped by de-icing control. Automatic restart. This error is only visible in the evaporator temperature