Air Techniques, Inc.
Page
20
Problem
Probable cause
Solution
Display: "Temperature sensor defect"
Units function,
red LED "Fault" lit
• Connection between controller
and temperature sensor interrupt-
ed
• Check connection, if necessary
reestablish�
• Temperatur sensor defective
• Replace temperature sensor�
Display: "Fault Module Monitoring"
Units function,
red LED "Fault" lit
• Controller module defective or
loss of contact
• Check module contacts, if neces-
sary replace module�
16�2 Further messages at display panel
The following messages give information, but do not indicate a fault or downtime of the units�
Message
Probable cause
Solution
"Bacterial filter needs changing"
• Maintenance interval reached
• Change the filter inserts of the suc-
tion bacterial filter (E5131)�
"Temperature too high"
• Ambient temperature too high
> 113°F (45°C) for more than
1 minute
• Check ventilation�
"Temperature not yet low enough�"
• Ambient temperature still too high
not yet under 104°F (40°C)
• Check ventilation�
"No connection to unit"
• Networking connection between
units and display panel interrupted
• Reestablish connection�
Summary of Contents for AirStar AS120
Page 2: ......