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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 [email protected].
