
63
Trouble shooting
Error codes which may arise on the control panel display
Error code/symptoms
Fault-finding
Cause/Action
04E
Temperature sensing device
indicates temperature below -
5
°
C (continuity fault).
Turn the machine’s wall switch off and on again.
Start a program.
Error code returns
No error code
Short-circuit the temperature sensor by the
sensor. Turn the machine’s wall switch off and
on again. Start a program. Check whether the
error displayed is 04E or 05E.
04E
05E
Remove PCB connector X74 on program control
unit PCB. Short-circuit inputs 1 and 2. Turn the
machine’s wall switch off and on again. Start a
program. Check whether the error displayed is
04E or 05E.
04E
05E
2
X74
1
2316
3399
Temperature
sensor
Check
voltage
Transient fault.
Temperature sensor faulty.
Replace sensor.
Fault in temperature sensing
device on program control
unit PCB. Replace PCB.
Rough values on the temp.
sensor
T (
°
C)
R (ohm)
19
6100
20
5850
21
5600
22
5350
23
5100
Fault in wiring to temperature
sensor. Check wiring and
replace if necessary.