NuAire Allergard A Series, Operation And Maintenance Manual, Page: 27 / 37

OM0312 27
8.1 Error Message Troubleshooting Guide
Error Message Error Description Correction
Cabinet LED lights
won’t Turn on
Blue LED above light key indicates the lamp
should be on.
Check light fuse on main control board.
Check LED lamps.
Check voltage coming out of main control board
to
light ballasts.
Check light starters, if present. Check ballast.
Cabinet blower won't
turn on.
Green LED above blower key indicates the
blower should be on.
Airflow Alarm.
Check blower fuse on main control board.
Check AC voltage coming out of main control
board.
Check wiring to blower.
Check blower motor.
Check DC motor PWM signal on main control
board.
Red alarm LED blinks Indicates a power interruption has occurred. Press any key to clear.
Blower or light fuse
continues to blow
after replacement.
N/A
Check for short on output of fuse.
Isolate output of fuse by disconnecting control
center
connectors, light circuit, AC or DC blower
circuit,
etc. to isolate the short.
Blower green LED
blinks fast and
PresurFlow™ 3 green
LED’s indicators on
Indicates that the Nite Care is activated,
preventing the usage of the cabinet.
N/A
Presu rFlow™ left red
LED indicator on and
red LED alarm PresurFlow™ reading low flow (pressure)
Check airflow values.
Check blower function.
Recalibrate PresurFlow™ system .
PresurFlow™ right
red LED indicator on
and red LED alarm PresurFlow™ reading high flow (pressure)
Check airflow values.
Recalibrate PresurFlow™ system.
All PresurFlow™
LED’s blink Message acknowledges new firmware was
loaded into microprocessor
N/A
Blower red LED
blinks and red LED
alarm
Indicates that the motor rpm signal has been
interrupted
Check connectors and wires from main control
board
to the motor
Replace motor if required