Self Test - U-Line U-3018RFOL-00 Service Manual

Offsets.
Up
Down
WARNING
Customer care MUST be notified and approve of any
changes to the differential before they are made. Failure
to notify customer care will void the warranty.
Offsets are used to adjust or correct thermistor readings. Offset
values are added to the current thermistor reading and are then used
by the control board to determine cooling and defrost cycle times.
Offsets have a range of +/- 10°F. Corrected values may be viewed
through the customer "All Temps" menu or TTY output.
To access Offsets
1. Use Down to select "Offsets".
2. Press Select .
3. Use Up and Down
To change offset
4. Press Select , the selected thermistor will begin to flash.
5. use Up or Down to modify offset value.
6. Press Select to confirm setting.
To exit the Offset menu use Up
press Select to confirm.

Self Test

Up
Down
Self test is used to initiate a self diagnostic report. Any system faults
will be displayed under Self test. If no errors are present "no errors"
will be displayed and the main control board is functioning properly. If
an error is listed attempt to correct it before changing control board.
See troubleshooting for tips on correcting errors.
To access Self Test
1. Use Down to select "Self Test".
2. Press Select .
3. Use Up and Down
RETURN TO MENU
OFFSETS
ZONE = 1°F
EVAP = 1°F
to scroll through available thermistors.
to select "Return to Menu" and
RETURN TO MENU
SELF TEST
NO ERRORS
try "RELAY TOGGLE"
to scroll through available information.
To exit the Self Test use Up
Select to confirm.
Differentials
Select
Customer care MUST be notified and approve of any
changes to the differential before they are made. Failure
to notify customer care will void the warranty.
Differentials are used to determine the maximum variation from set
point and have a range of 0 through 10. The table below shows the
effect of differentials on cooling cycles with a set point of 45°.
Note: Air temperature does not reflect product temperatures. .
Differential
0
1
2
3
4
5
The graph below shows a unit's cooling cycle over time with various
differentials.
Select
U-Line Service
General Information
to select "Return to Menu" and press
Up
RETURN TO MENU
DIFFERENTIALS
ZONE = 1°F
Down
WARNING
Cycle Start
46°
47°
48°
49°
50°
51°
45° Set Point
Select
Cycle End
44°
43°
42°
41°
40°
39°
1° Differential
2° Differential
3° Differential
13