Description &
Classification
Dirty filter
switch is
detected
*Warning
•
Dirty filter (detected by
tan mounted pressure
differential switch)
•
Calibrate differential
switch
•
Faulty Sensor
•
Loose Connection
•
Incorrect settings of
digital input on the
controller
•
Change Filter
•
Adjust differential pressure set
point of switch
•
Replace differential pressure
switch if needed
•
Check Connection and cable
•
Go to Menu L- Configure I/O and
change the Dirty Filter Switch
action setting
Humidity
Sensor failure
*Warning
•
Loose sensor
•
Faulty sensor
•
Check connections for
polarity
•
Incorrect settings of
digital input on the
controller
•
Check
connection
•
Use sensor chart to check
sensor signal (in milliamps).
Replace sensor if required
•
Connect wiring to correct
connection points
•
Go to Menu L- Configure I/O and
check the Humidity Sensor
(U01)
settings
Clock Board
Fault or Not
Connected
Clock may not
function when
power is off
*Warning
•
Battery could be bad
or not re-charging
•
Replace battery (please contact
factory) for help.
Unit in Standby
(This is a not
an actual
alarm, just a
notification and
shown only on
unit status line)
Optional Alarm
switch set to
put unit in
standby status
(not running)
*Notice
•
Optional Alarm switch
connected to DARA4
controller if installed
•
Optional Alarm switch
wired to cabinet door
switch (standard on In
Row units)
•
Incorrect optional
alarm inputs
configuration
•
Check DARA-4 wiring to units
and configuration
•
Close the cabinet door
•
Check controller optional alarm
inputs configuration
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