Convotherm OEB Series Service Handbook page 254

Service manual OEB/OES/OGB/OGS
easy OEB OES OGB OGS
touch
KD / 19.08.2009
Error Error description
message
interruption
ID=2
E23.1 Steam generator
(sensor B4 in boiler )
ID=11
- short circuit to earth
E24.0 Bypass sensor (B5-
thermoelement)
ID=4
interruption
E24.1 Bypass sensor -
(B5 in the bypass
ID=13
pipe) short circuit to
earth
E25.0 Condenser sensor
(B3- thermoelement)
ID=3
interruption
E25.1 Condenser sensor -
(sensor B3 in
ID=12
condenser) short
circuit to earth
E26.0 Safety temperature
limiter (B8-
ID=1
thermoelement)
interruption
E26.1 Safety temperature
limiter - (B8 in boiler)
ID=10
short circuit to earth
E27.0 STL (B8-
thermoelement)
ID=19
excessive
temperature
(STL measures a
temp. >130° C in the
SG when SG heaters
switched on)
E29.0 Short circuit to earth
of a thermoelement
E29.1 CTS1 short circuit to
earth
ID=15
5_00e_Troubleshooting list and error messages - Electronics_h.doc
Possible cause or remedy
Steam generator sensor (B4) interrupted
•
(defective)
Thermoelement sensor (B4) has contact with
•
appliance housing due to boiler overheating
Steam generator sensor (B4) defective
•
Sensor wiring interrupted (plug X16 of the control
•
module)
Bypass sensor (B5) interrupted (defective)
•
Thermoelement sensor (B5) has contact with
•
appliance housing
Bypass sensor (B5) defective
•
Sensor wiring interrupted (plug X16 of the control
•
module)
Condenser sensor (B3) interrupted (defective)
•
Thermoelement sensor (B3) has contact with
•
appliance housing
Condenser sensor (B3) defective
•
Sensor wiring interrupted (plug X17 of the control
•
module)
STL (SG) sensor (B8) interrupted (defective)
•
STL (SG) Thermoelement sensor (B8) has contact
•
with appliance housing due to boiler overheating
STL (SG) sensor (B8) defective
•
Foaming in the steam generator when cooking (due to
•
e.g. wrong, non-original CONVOTHERM cleaning
agents)
Calcification of the steam generator
•
Boiling dry of the immersion heaters due to double
•
level sensor's short circuit to earth
A thermoelement sensor has contact with appliance
•
housing
Connection between sensor wire and sensor housing
•
Test individual sensors for short circuit to earth
(beginning with CTS)
Thermoelement sensor B10 has contact with
•
appliance housing
Possible cause:
a) Sensor wiring broken
b) Water has entered measuring tube
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