PART 5: OPERATOR TROUBLESHOOTING
(Cont.)
5.3 Using the Touchpad/Display to evaluate problems
All dishwashers perform a self-diagnostics when you push the POWER button to turn the
machine on. Watching the display provides information that will help you and your service agent
troubleshoot certain problems.
The dishwasher self-diagnostics provide the following information:
1. All LED's illuminate indicating proper operation of the LEDs.
2. Display window(s) flash 888F.
Incorrect temperature readings can be checked by
observing the display test to see if all segments are working.
3. Error codes are displayed during self-diagnostics and
whenever the component is active during the automatic cycle:
E0F, E1F, E2F and E3F for machines programmed for
°
F.
E0C, E1C, E2C and E3C for machines programmed for
°
C.
(See next page for description of codes).
4.
LOF or LOC
is observed in the temperature display window.
All models may display "LO" because the temperature display indicates temperature
from 115
°
F/46
°
C and above. This is a normal condition during initial fill.
The
LOF
or
LOC
display at any other time may be an indication of a temperature problem
in the dishwasher and should be investigated before proceeding with warewashing.
NOTE:
For the UL-100 model, a LOF or LOC temperature reading requires that the
machine be drained and refilled with fresh water to maintain a minimum wash
temperature of 120
°
F/49
°
C. Optimum temperature is 140
°
F/60
°
C.
Champion
POWER
START
EXTENDED
WASH
WASH
RINSE
PRIME
TEMPERATURE
PRESSURE
888F 888
Figure 5.3.1
Self-diagnostics Display
(UH-200 Series Shown)
DISPLAY
SEGMENT
DETAIL
ALL
SEGMENTS
WORKING
SHOWS
THE
NUMBER
"8".
Champion
POWER
START
EXTENDED
WASH
PRIME
TEMPERATURE
LO F
Figure 5.3.2
LO Temperature Displayed
(UH-100 Series Shown)
Part 5:
OPERATOR TROUBLESHOOTING
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