Service Menu - U-Line U-3045WCINT-60B User Manual & Service Manual

USER GUIDE
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE

SERVICE MENU

In addition to a feature rich customer menu, the 3000
series also offers a service menu with the ability to fine
tune and monitor unit operation.
To initiate the Service menu hold both
seconds.
Actual Temps
Up
Down
The Actual Temp option in the service menu will display
raw thermistor readings without calculating offsets.
1. Press to select "Actual Temps".
2. Press .
3. Use and to scroll through available thermistor
readings.
To exit the Actual Temps menu press
to Menu" and press to confirm.
All Errors
Up
Error ID
Down
and for 5
Select
RETURN TO MENU
ACTUAL TEMPS
ZONE = 2°C
EVAP = °C
to select "Return
Number
Of Occurrences Select
RETURN TO MENU
ALL ERRORS
NO COMM 0
ZONE T OPEN 0
The All Errors option keeps record of any system errors.
When an error occurs it is recorded to all errors. The
number next to the error indicates the number of recorded
instances. Errors in the log may not be currently active.
The error log memory is non volatile and is persistent
should power be lost and restored to the unit. See below
for a list of logged errors and their respective descriptions.
ID Description
No Unit lost
Comm communication to
the display.
Zone T Zone thermistor
Open circuit open.
Evap T Evaporator
Open thermistor circuit
open.
Amb Ambient
Thrm thermistor circuit
Open open.
Zone T Zone thermistor
Short circuit shorted.
Evap T Evaporator
Short thermistor circuit
short.
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Solution
Unplug the communication cable
from the user interface. Check
the black to red conductors
looking for 5 VDC. If voltage is
present replace the user
interface. If no voltage is
present check for 5 VDC at the
main board where the
communication cable plugs onto
the pins for the red and black
conductors. If 5 VDC is not
present replace the main control
board. If 5 VDC is present
replace the communication
cable.
Check thermistor connection to
harness for moisture or
corrosion. Also check connection
where thermistor harness
attaches to main board. If
connections are valid replace
the thermistor.
Check thermistor connection to
harness for moisture or
corrosion. Also check connection
where thermistor harness
attaches to main board. If
connections are valid replace
the thermistor.
Check thermistor connection to
harness for moisture or
corrosion. Also check connection
where thermistor harness
attaches to main board. If
connections are valid replace
the thermistor.
Check thermistor connection to
harness for moisture or
corrosion. Also check connection
where thermistor harness
attaches to main board. If
connections are valid replace
the thermistor.
Check thermistor connection to
harness for moisture or
corrosion. Also check connection
where thermistor harness
attaches to main board. If
connections are valid replace
the thermistor.
Control Operation - Service 2