USER GUIDE
Troubleshooting - Extended 10
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
SERVICE
ERROR NOTIFICATION
The 3000 model series continuously monitors a series of
inputs and parameters to ensure proper and efficient
operation of your unit. Should the system detect a fault, an
error notification will be displayed on the user interface.
These errors are considered active and can also be viewed
in the Self Test and All Errors mode of the service menu.
See below for a list of errors and possible solutions.
Actual Temps
The “Actual Temps” option displays the offset corrected
temperature of each zone, evaporator, as well as ambient
temperature.
1. To view actual temperatures first select “Actual Temps”
from the customer menu.
2. Press
or to scroll through available information.
3. To exit, press
Return to Menu.
THERMISTORS
Thermistors are used for various temperature readings.
Thermistors provide reliable temperature readings using a
resistance which varies based on surrounding
temperatures. If a faulty thermistor is suspected it may
be tested using an accurate ohmmeter. In an ice water
bath (32°F) resistance should measure 16.1 kilohms,
5K OHMS @ 77°
16.1K OHMS - 32°F ambient
ID
Description
Solution
No Comm
Unit lost
communication to
the display.
Inspect Customer UI
and Data Cable (if
defective replace entire
door)
Zone T Open Left or right zone
thermistor circuit
open.
Check connection.
Replace if necessary.
Amb Thrm
Open
Ambient thermistor
circuit open.
Check connection.
Replace if necessary.
Zone T Short Left or right zone
thermistor circuit
shorted.
Check connection.
Replace if necessary.
Amb Thrm
Short
Ambient thermistor
circuit shorted.
Check connection.
Replace if necessary.
Temp Hi 6H+ Left or right Zone
tempe10°
over set point for
over 6 hours.
Check compressor,
evaporator fan and
related relays and DC
outputs.
Temp Hi
12H+
Zone temperature
+10° over set point
for over 12 hours.
Check compressor,
evaporator fan and
related relays and DC
outputs.
Temp Lo 6H+ Zone temperature
-10° under set point
for over 6 hours.
Check compressor,
evaporator fan and
related relays and DC
outputs.
Temp Lo
12H+
Zone temperature
-10° under set point
for over 12 hours.
Check compressor,
evaporator fan and
related relays and DC
outputs.
Door Open
5M
Door switch open for
more then 5
minutes.
Verify door is closed and
sealing. Check reed
switch and related
connections.
Up
Select
Down
RETURN TO MENU
ACTUAL TEMPS
BIN TEMP = 1.6
COND TEMP = 45.5
Can be displayed in Celsius
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