Stulz ASU series - 8. Malfunction and Troubleshooting; Airflow Failure Alarms; Sensor Error Diagnosis; Sensor Defect Resolution

35
cyberair 3pro cw2 original instructions
© STULZ GmbH – all rights reserved EN/06.2017/G18D
Alarm message Cause for alarm Cause Elimination
Airflow failure 
switch has triggered.
1. Fan motor defective. Fan speed
too low.
-
rent consumption.

 

or kinked.

.
Sensor # error 
-


values in selected zone.

moist zones.
2. sensor defective. -
ring instrument.
Sensor # defective 
is outside the range defined in
the controller.
1. electrical connection defective. 
2. sensor cable defective. 
3. sensor defective. -
meter, hygrostat, pressure gauge.

# stands for a number in case of several components of the same kind.
8. Malfunction