F.032
The fan speed is outside of the tolerance.
Vaillant ecoTEC Plus Combi
Possible cause
Fault in the electrical connection for the fan
Measure
Check the wiring harness between the PCB and fan, including all plug connections.
Possible cause
Fan blocked
Measure
Check that the fan works correctly.
Possible cause
Fan defective
Measure
Check and, if required, replace the fan.
Possible cause
Fault in the flue gas route caused by recirculation or flue gas blockage
Measure
Check the entire flue gas route.
Possible cause
PCB defective
Measure
Replace the PCB.
This code also applies to: