Service Handbook OEB/OES/OGB/OGS
AS/11-2011 2_04_02e_Electronic safety switches_b
Service area excess temperature (Controls 10) additional fan switches on
at 45°C and off at 41°C . On gas units the additional fan runs constantly, when
the unit is switched on.
Low water on pressure switch S1 12 of the solenoid valve Y4 (Steam
generating through water injection) only in OES and OGS
No pressure on pressure switch S2 11 on the pressure side of the pump for
the cleaner and the nozzle rinsing solution in units with the CONVOClean
system.
Error code from the automatic firing 15 N20, N21, N22 only in OGB and OGS
Information:
When errors or disturbances occur during operation, the unit goes into error
operation as follows:
The buzzer 9 sounds,
All processes (oven lamp 1, fan motor 2, Convection heating 4, Convection
automatic firing 3, Steam generator heating 6, Steam generator automatic
firing 7, Steam generator pump 8 and all solenoid valves Y1, Y2, Y3, Y4
(Normal operation) as well as Y20, Y21, Y22, Y23 (CONVOClean system) are
switched off.
On the digital display the errors with error codes are shown and an additional
error description is given.
After confirming the errors with the "STOP" key, the user can continue working
with the Emergency programme.
Check:
Buzzer sounds for error codes
Error codes and additional error descriptions are displayed
Instructions:
With the help of the error code and trouble shooting list (Chapter 5) find and correct
error.
Page 3 / 3
Cross reference:
Service Handbook Chapter 5. Trouble shooting and Error Codes Electronic
Notice (valid only for OGB and OGS):
If a gas unit has more than one burner, the controls for the automatic firing are on
the gas module (GM).
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