U-Line U-3060DWRINT-00A User Manual & Service Manual page 61

USER GUIDE
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
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.
ID Description
No Comm Unit lost
communication to
the display.
Zone T Open Left or right zone
thermistor circuit
open.
Amb Thrm Ambient thermistor
Open circuit open.
Zone T Short Left or right zone
thermistor circuit
shorted.
Amb Thrm Ambient thermistor
Short circuit shorted.
Temp Hi 6H+ Left or right Zone
temperature +10°
over set point for
over 6 hours.
Temp Hi Zone temperature
12H+ +10° over set point
for over 12 hours.
Temp Lo 6H+ Zone temperature
-10° under set point
for over 6 hours.
Temp Lo Zone temperature
12H+ -10° under set point
for over 12 hours.
Door Open Door switch open for
5M more then 5
minutes.
Solution
Inspect Customer UI
and Data Cable (if
defective replace entire
door)
Check connection.
Replace if necessary.
Check connection.
Replace if necessary.
Check connection.
Replace if necessary.
Check connection.
Replace if necessary.
Check compressor,
evaporator fan and
related relays and DC
outputs.
Check compressor,
evaporator fan and
related relays and DC
outputs.
Check compressor,
evaporator fan and
related relays and DC
outputs.
Check compressor,
evaporator fan and
related relays and DC
outputs.
Verify door is closed and
sealing. Check reed
switch and related
connections.
Actual Temps
Up
Down
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
61
SERVICE
RETURN TO MENU
ACTUAL TEMPS
BIN TEMP = 1.6
COND TEMP = 45.5
Can be displayed in Celsius
Troubleshooting - Extended 10
Select