U-Line U-3018RFOL-00 Service Manual page 15

3. Use Up and Down
readings.
To exit the Actual Temps menu use Up
Menu" and press Select to confirm.
All Errors
Up
Down
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.
Zone T Open Zone thermistor circuit
open.
Evap T Open Evaporator thermistor
circuit open.
Amb Thrm Ambient thermistor circuit
Open open.
Zone T Short Zone thermistor circuit
shorted.
Evap T Short Evaporator thermistor
circuit shorted.
Amb Thrm Ambient thermistor circuit
Short shorted.
Temp Hi 6H+ Zone temperature +10°
over set point for over 6
hours.
Temp Hi 12H+ Zone temperature +10°
over set point for over 12
hours.
Temp Lo 6H+ Zone temperature -10°
under set point for over 6
hours.
Temp Lo 12H+ Zone temperature -10°
under set point for over 12
hours.
Door Open Door switch open for
5M more then 5 minutes.
To access All Errors follow the steps below.
1. Use Down to select "All Errors".
2. Press Select .
3. Use Up and Down
to scroll through available thermistor
to select "Return to
Number
Error ID Of Occurrences
RETURN TO MENU
ALL ERRORS
NO COMM 0
ZONE T OPEN 0
Solution
Check display cable. Replace if
necessary.
Check connection. Replace if
necessary.
Check connection. Replace if
necessary.
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.
Check reed switch and
connection.
to scroll through available information.
To clear the error log use Down
press Select
To exit the Actual Temps menu use Up
Menu" and press Select
Relay Status
Select
Relay status displays the current state of each relay. While all available
relays are displayed, only a portion are used.
ID Description
Mull Mullion Heater
Cond Condenser Fan
Def Defrost Valve
LVLV Left Vale
RVLV Right Valve
Pan Pan heater
Comp Compressor
Note: The Cond (Condenser Fan) will switch state with the
compressor relay, however the condenser fan is actually powered
through a DC output and is independent of the Cond relay.
Condenser fan status can be viewed through the "Output" service
menu option.
To access Relay Status
1. Use Down
2. Press Select
3. Use Up
To exit the Relay Status simply press Select
U-Line Service
General Information
to select "Clear Errors" and
to confirm.
to select "Return to
to confirm.
Up
RETURN TO MENU
RELAY STATUS
MULL COND DEF
OFF OFF OFF
Down
Status
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Used
to select "Relay Status".
.
and Down to scroll through available information.
Select
LVLV
OFF
to exit.
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