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Fault Messages and Troubleshooting
Fault Messages
8
Ultrapac2000 midi sp / 24.09.2008
US
8.1 Fault Messages
Symptom Cause Action
dew point not sufficient – Operating conditions (P / T) differ from parameters
fitted into the Ultrapac 2000 midi superplus
– life of desiccant cartridges exceeded
– throttle element fouled or blocked or wrong diame-
ter of bore
– defective shuttle valves or regeneration valves
– silencer fouled or blocked or damaged
– condensate line blocked
– adjust dryer
– change cartridges
– check throttle
– change multifunction unit
– clean line
– clean line
– high pressure dropt
– high air flow at si-
lencer
– service message
“change prefilter!“
malfunction of shuttle
valve
ball damaged Change multifunction unit
diaphragms damaged Change multifunction unit
pressure build up insuf-
ficient
wrong or blocked throttle
element
– change throttle element
– adjust pressure and tempera-
ture new
fouled throttle element clean throttle element
pressure build up time
too short
adjust pressure and temperature
new
wrong sequence during
commissioning
1. Step: pressurise
2. Step: power on
after electrical connec-
tion no function of the
dryer
– board not connected
– transformer wrong or
defective
terminal block not con-
nected
check terminal block
check contacts
after electrical connec-
tion all LEDs lighted
data stream to the con-
troller is interrupted
processor or EEPROM
not correctly assembledt
turn processor / EEPROM by
180°
acknowledgement switch
connected to the plug
remove acknowledgement
switch and start dryer again
scrolling through menu
by button “MODE“ does
not work
controller failure switch dryer off and on again
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