False start protection
The drive motor is protected against autonomous starting following faults,
overhea-
ting. The message “Switch off motor“ appears in the
display (5)
while the drive motor
remains in the blocked state. After rectifying the fault and switching off the motor,
motor
on/off switch (2)
, the message “Switch off motor“ disappears from the
display (5)
. Work may
then continue.
Err04
ERROR
Leister WELDPLAST S4 / EC4 hand extruder
17
Error messages
An error occurring is shown in the status display (29) (e.g
Motor is overheated).
Display
When an error occurs, the heating units for AIR and PLAST, as well as the drive motor,
are switched off immediately!
Should this not take place, the tool must be disconnected from the mains supply
immediately!
Further procedure with status display (29)
• Note down the error code
• Release the
locking device (4)
of the
motor on/off switch (2)
as applicable and
then let go of the
motor on/off switch (2).
• Switch off the tool at the
main switch (1).
• Start using the tool again under supervision and ensure that the extruder is not
overheated from the outside.
• Eject the remaining plastic from the screw if possible.
• Should the error reoccur, the tool should be sent to the Service Centre to be
checked, specifying the error code.
ErrXX
ErrXX
Err04
The following errors are recognised by the tool:
Drive overheating protection
If the drive is overheated by external influences or because the PLAST temperature
is too low, the internal temperature protection of the drive switches off (see
)
Err04
Several errors can occur at once
e.g. and
Display:
!
Further combinations are displayed with the letters A, B, C, D, E and F.
e.g. and
Display
!
Err0A
Err02
Err08
Err06
Err04
Err02
Display
Type of fault
Err01
Overheating of the air or defective temperature probe
Err02
Overheating of the plastic welding material or defective temperature probe
Err04
Overheating of the motor winding, motor is overheated
Err08
Overheating of the heating element, AIR or failure of the blower motor
Err10
Overheating of the electronics
Err40
Short circuit of the PLAST temperature probe