Convotherm OGS 20.20 - Page 109

Service manual OEB/OES/OGB/OGS
5_00e Troubleshooting list_L 6/27 2013-01-30
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Error-
message
Error description possible cause or remedy

Start speed at the burner HA2 not reached
 possibly voltage supply disturbed
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
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E05.6-1
ID53
No gas
(only 20.10 / 20.20)
 Start speed at the burner HA2 not reached
 PWM signal interrupted






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E05.6-2
ID53
No gas
(only 20.10 / 20.20)
 Start speed at the burner HA2 not reached
 possibly voltage supply disturbed






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E05.7.xxx
No gas
 Full load speed at the burner HA1 not reached
 PWM signal interrupted
 Full load speed at the burner HA1 not reached
 possibly voltage supply disturbed





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E05.8.xxx
No gas
 Full load speed at the burner steam generator not
reached
 PWM signal interrupted
 Full load speed at the burner steam generator not
reached
 possibly voltage supply disturbed






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E05.9.xxx
No gas
(only 20.10 / 20.20)
 Full load speed at the burner HA2 not reached
 PWM signal interrupted
 Full load speed at the burner HA2 not reached
 possibly voltage supply disturbed






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E05.10.x
xx
ID52
No gas
(from Software 4.15)
Wait 40 seconds, if
there is no ‘Flame OK’
or ‘Alarm Signal’
 Interruption of flame OK or Alarm Signal between flame
controller - control module HL1.
Check connection between FA and CM / GM:
 CM: for OGS 6.10 to OGS 12.20: X14:1/2 and X15:12
(for units without GM)
 GM: Plug X20:5/6 and X25:10
 FA: Clamps 1, 2, 5
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
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
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E05.11.x
xx
ID54
No gas
(from Software 4.15)
Wait 40 seconds, if
there is no ‘Flame OK’
or ‘Alarm Signal’
 Interruption of Flame OK or Alarm signal between flame
controller - SG control.
Check connection between FA and GM:
 GM: Plug X21:4/5 and X25:11
 FA: Clamps 1, 2, 5
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





E05.12.x
xx
ID53
No gas
(from Software 4.15)
Wait 40 seconds, if
there is no ‘Flame OK’
or ‘Alarm Signal’
 Interruption of Flame OK or Alarm signal between flame
controller - control module HL2.
Check connection between FA and GM:
 GM: Plug X22:4/5 and X25:12
 FA:Clamps 1, 2, 5
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
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
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
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
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E11.xxx
ID23
Oven sensor (B6
thermoelement)
excessive temperature
(Temperature on the
sensor >300°C)
 Hot air contactors do not switch off (burnt together)
 Motor not operating (e.g. because of 2 defective
miniature fuses F10, not with the 6.06 as F10 protects
the CM).


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
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ID25
Core Temperature
Probe 1 – Over
 CTC probe has temperature higher than the maximum
acceptable value (sensor not correctly inserted into the food