U-Line 3090WCWC User Manual page 66

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
Can be displayed in Celsius
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. Press and to scroll through available thermistor
readings.
To exit the Actual Temps menu, press
"Return to Menu" and press
All Errors
Up
Error ID
Down
and for 5
Select
RETURN TO MENU
ACTUAL TEMPS
ZONE = 37°
EVAP = 52°
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 Unit lost
Comm communication to the
display.
L Zone T Left Zone thermistor
Open circuit open.
R Zone T Right Zone thermistor
Open circuit open.
L Evap T Left evaporator
Open thermistor circuit open.
R Evap T Right evaporator
Open thermistor circuit open.
Amb Ambient thermistor
Thrm circuit open.
Open
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Solution
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.
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