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AIR BOOSTER 2
EN/10.2018/IT30I © STULZ SpA – all rights reserved
10. Troubleshooting
Please consider the safety considerations at chapter "Safety directions". All the operations
described below have to be done by authorized and qualified personal.
Problem Possible cause Possible solution
GENERAL
1. The controller and the
rest of the unit don't
work
Main power supply missing Restore power supply
Main switch open Close main switch
Power supply to the controller is missing Check voltage on power supply cables. Repair the
broken cable or restore the missing connection
Controller faulty Contact STULZ service
2. Controller is working
but display is not
working
Cable between controller and display disconnected Reconnect the cable
Cable between controller and display broken Replace the cable
Display faulty Contact STULZ service
3. Controller is working
but the rest of the unit
is not working
Faults blocking the unit Look for alarms on the display (see below).
Contact STULZ service
Controller faulty Contact STULZ service
ALARMS ON THE DISPLAY
4. Component x thermic Anomalous absorbed current by component x Contact STULZ service
Defective protection Contact STULZ service
5. Fan blocked Fan broken Contact STULZ service
Fan cables disconnected Contact STULZ service
Wrong configuration of controller Contact STULZ service
6. Air flow Fan broken Contact STULZ service
Fan cables disconnected Contact STULZ service
Wrong setting of air flow Contact STULZ service
7. LAN failure Missing LAN cable Connect units in LAN with a suitable cable
LAN cable is not pin-to-pin Replace it with a pin-to-pin cable
Controller is damaged Contact STULZ service
11. Uninstalling and disposal of the
unit
This unit must be uninstalled by specialized and authorized persons.
DANGER
Before starting to dismantle the unit check that it has been disconnected from electric power
supply and secure it against being switched on again.
The following are the instructions for proper disposal of the unit during the various phases of its life.
For further clarification or additional information, please contact info@stulz.it.
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