1
4
/2
2
T
1
-8
8
-0
5
N
u
r
z
u
m
in
te
rn
e
n
G
e
b
ra
u
c
h
E 7 (Only with a
distributor board)
Invalid operating point due to
incorrect pan
material
Component error
The ferromagnetic properties of the
pan material deteriorate as the heat
rises
IHE components destructed
Use suitable pan material =>
Replace pan
Replace IHE
E / 9
PT1000 coil sensor defect
Sensor shows implausible readings,
a defect must be presumed.
Replace IHE*.
No display and
no function
400V incorrect connection
Touch control fault
CU fault
No communication between CU
and TC
Faulty power connection
Component fault
CU component fault
ca. 47 k
W
Connect the power supply properly.
Replace the touch control.
Multimeter diode test measurement
(see p. 22).
Replace IHE.
Replace (faulty) CU.
Check or replace the LIN bus cable.
Faulty pan recognition
Unsuitable pan
IHE component fault
Use a suitable pan.
Replace IHE.
Cyclical bargraph
or Er 31 or Er 47
Wrong touch control
Insert touch control with the correct
component number.
Er 20
Flash error
Data not plausible
Flash ROM test sum incorrect
Programming options incorrect
Touch control component fault
Replace the touch control.
Er 22
Key interpretation defect, touch
control switches off after 3.5-
7.5 sec.
Short circuit or interruptions in the key
interpretation
Replace the touch control.
Error code
Description
Possible cause of fault
Measuring
Remedy
