Technical Information
54
PW 6xx7
MDU fault # Possible cause Notes Indication in EW 235
display
Fault/Information
F4128 Tachogenerator
connection fault
during program stop
No tachogenerator signal
present at start of program stop.
After safety time has elapsed,
there is still no tachogenerator
signal present. Tachogenerator
connection defective.
Frequency converter relay K1/9
defective.
“Drive system fault!
Program stop. Activate
emergency release.”
Fault
F4129 Tachogenerator
connection fault at
program end
No tachogenerator signal
present at program end. After
safety time has elapsed, there
is still no tachogenerator signal
present. Tachogenerator
connection defective.
Frequency converter relay K1/9
defective.
“Drive system fault!
Program stop. Activate
emergency release.”
Fault
F4130 Drive fault. Frequency
converter contactor
charred and fused
closed
Contacts of frequency con-
verter relay K1/9 fused closed.
Relay K1/9 for frequency
converter power supply does
not switch. Door not locked but
power still applied to frequency
converter. Communication still
active between EFU 235 and
ELP 235.
“Drive system fault.
Call the service
department if restart
does not work.”
Fault
F4131 Drive motor
thermostat fault
Door lock safety switch S3 does
not switch or drive motor
winding protection switch F3
has cut out (high temperature at
motor). Check cause of high
temperature (e.g., overloading,
initial stages of bearing
damage, free rotation of drum,
cooling problems, motor).
“Drive system fault!
Program stop. Press
start button, motor
temperature too high”
Fault
F4132 FEHLER_POSITION
_NICHT_ARRETIER
T
Clean/Soiled side positioning
lock not activated. Not for
standard machines. Check
coding plug N1L_ST19 and
coding.
“Positioning fault! Call
the service department
if restart does not
work.”
Fault
F4133 FEHLER_POSITION
_ARRETIERT
Clean/Soiled side positioning
lock activated. Lock cannot be
released or limit switch is
defective. Not for standard
machines. Check coding plug
N1L_ST19 and coding.
“Positioning fault. Call
the service department
if restart does not
work.”
Fault
F4134 Imbalance fault Imbalance switch S76 provides
signal for > 10 ms. Imbalance
switch short-circuited.
Without a wash
program in progress:
No display. During a
wash program:
“Imbalance fault. Call
the service department
if restart does not
work.”
Fault
F4135 Imbalance switch
fault
Without wash pro-gram
in progress: No
display. During wash
program: “Imbalance
fault. Call service
department if restart
does not work.”
Fault
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