U-Line 3018CLR User Manual page 58

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 Up
Toggle for 5 seconds.
Actual Temps
Up
Can be displayed in Celsius
Down
The Actual Temp option in the service menu will display
raw thermistor readings without calculating offsets.
1. Use Down to select "Actual Temps".
2. Press Select .
3. Use Up and Down
thermistor readings.
To exit the Actual Temps menu use Up
"Return to Menu" and press Select
All Errors
Up
Error ID
Down
and Zone
Select
RETURN TO MENU
ACTUAL TEMPS
ZONE = 37°
EVAP = 52°
to scroll through available
to select
to confirm.
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 Comm Unit lost
communication
to the display.
Bin T Open Bin thermistor
circuit open.
Condenser T Condenser
Open thermistor
circuit open.
Bin T Short Bin thermistor
circuit shorted.
Condenser T Condenser
Short thermistor
circuit shorted.
Temp Hi Not used.
6H+
Temp Hi Not used.
12H+
Temp Lo Not used.
6H+
Temp Lo Not used.
12H+
Door Open Door switch
5M open for more
then 5
minutes.
u-line.com
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 connection. Replace if
necessary.
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.
Not used.
Not used.
Not used.
Not used.
Check door switch magnet reed
switch alignment when door is
in closed position. Check reed
switch connection at the
harness and the main board.
Control Operation - Service 2