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Troubleshooting
Troubleshooting Problems Customer Resolution
Unit doesn't power on
Check for proper installation of the
power plug.
Unit's audible alarm doesn't sound
when out of temp range?
refrigerator and is the system
pulling down to set point
temperature? Alarm will not
sound until the set point is met
(4 °C default)
• Did you have a recent power
failure and is the system pulling
down to set point temperature?
Alarm will not sound until the
set point is met (4 °C default)
LED Display Issues
Solid red
Data logging error but unit
is operating normal
Download data and clear the data log.
If light remains red there may be
another issue with the internal data
log; download data and contact
Phononic Customer Care.
Flashing Red
Data logging error during
power failure mode
(15 second intervals)
Download data and clear the data log.
If continues flashing red, possibly
there’s an issue with the backup
battery power running low. Replace it
with appropriate battery (see page 13).
Power failure and no
battery backup power
Change the battery and confirm that
the LED begins flashing green status.
Normal operation
No action required
Flashing Green
Data Logging is active in
a power failure mode
(15 second intervals)
Restore power to the unit and confirm
that the LED becomes solid green.
Interior Concerns
Condensation
I have frost forming on the walls
so, the cooling system is working hard
to maintain the target set point and
condensation may freeze on the walls.
It will thaw during the next defrost
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