Convotherm OEB Series Service Handbook page 113

Service manual OEB/OES/OGB/OGS
O O O O
E
Error-
E E G G
message
T
B S B S
   
ID12
 
E26.xxx
ID1
   
ID 10
 
E27.xxx
ID19
   
E29.xxx Short circuit to earth of
   
ID15
   
ID16
5_00e Troubleshooting list_L
Error description

interruption
Not at Mini mobile
Condenser sensor

(sensor B3 in the
condenser)

Short to frame.
The short to frame
cannot be clearly
detected. It may be a
different thermocouple
probe.
Safety temperature 
limiter (B8-
thermoelement)

interruption

Safety temperature 
limiter (B8 in the boiler)
Short to frame.

The short to frame
cannot be clearly
detected. It may be a
different thermocouple
probe.
STL (B8- 
thermoelement)
excessive temperature

(STL measures a temp.

>130°C in the SG when
SG heaters switched
on)

a thermoelement


CTS sensor1 Short to 
frame.
The short to frame
cannot be clearly
detected. It may be a
different thermocouple
probe.
CTS sensor2 Short to 
frame.
10/27
possible cause or remedy
Condenser sensor (B3) interrupted (defective).
Thermoelement probe (B3) or other has contact with
appliance housing
Condenser probe (B3) or other is defect.
Sensor wiring interrupted (plug X17 of the control
module)
CTS (SG) sensor (B8) interrupted (defective)
Foaming water destroyed the B8
Safety temperature limiter (STL) (SG) thermoelement
probe (B8) or other has contact with appliance housing
by overheating of the boiler.
STL (SG) probe (B8) or other is defect.
Foaming in the SG 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
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 probe B10 or other has contact with
appliance housing
Possible reason:
a) Sensor line is broken
b) Water entering into the measuring pipe
c) Thermoelement defect
Thermoelement probe B10 or other has contact with
appliance housing
2013-01-30