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Fault messages and rectification
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8. Fault messages and rectification
Technical system operation faults (failure of a unit) are indicated on the control unit display.
Fault message on display
8.1
-
Fault message as text on the LCD,
-
Operating control light flashes red.
Display LCD
Possible cause
Corrective action
KL24plus
No display, no light
Power is disconnected
Check the power supply to the plant and
controller
Check the microfuse F1 on the supply line
Check the position of the maintenance
switch (position 1)
if the buffer is empty, a power failure will be
indicated neither acoustically nor visually.
No display, light is green
Switch off the plant and turn it back on
after 10 second.
No/weak display
Contrast is set
incorrectly
Hold down ESC key and adjust contrast,
using the arrow keys.
Set the clock
Internal clock/date not
set
Make settings in the menu item Date and
Time
**Fault** Com. Fault
Compressor is not work-
ing/will not power on
Check the main fuse F1
Check the compressor in manual mode
**Fault** Valve 1
Valve does not operate
Blown fuse
Winding defective
Valve jammed due to
obstruction
Cable break
Check the valve in manual mode
Check the microfuse of the consumers F2
Check the valve for possible smoke resi-
due
Unscrew the valve from the metal bar,
check it for dirt, and remove dirt (see
Maintenance Instructions in the Appen-
dix).
**Fault** Valve 2
**Fault** Valve 3
**Fault** Valve 4
**Fault** UV module
UV module does not
work
Check the UV module and the remaining
lamp life
**Fault** min fill level
Compressed air line
leak between controller
and charging lifter, e.g.,
due to loose hose
Check hose for leaks
Warning Backwater
Water level is too high in
chamber 1
Compressed air line
clogged, e.g. due to
kinked hose
See Point -
Check hose for kinks
Temperature max
Temperature sensor not
plugged in
Cabinet fan is not work-
ing
Filters dirty in the cabi-
net and the compressor
Direct sunlight on the
cabinet
Temperatures for turn-
ing on the cooling fan
and the maximum tem-
perature that are en-
Plug in temperature sensor on back of
controller
Check the function of the cabinet fan
Check air filter in the cabinet
Shade location
Provide cool ventilation
Check air filter in the air compressor
Check air compressor in manual mode
Have maintenance company check set
temperatures
Replace temperature sensor
Summary of Contents for one2clean+ XXL
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