Convotherm OGS 6.10 - Page 221

Service manual OEB/OES/OGB/OGS
KD / 31.03.2009 5_00d_Fehlersuchliste_h_En.doc
Page 5 / 21
easy
touch
OEB OES OGB OGS Error
message
Error description
Possible cause or remedy
- Burner stocking braid has a short circuit to earth to
the ionisation electrode
- Ionisation electrode cable is resting on earth
(in the burner or on motor cover)
• Air in gas pipe
• Gas tap closed
• Input undervoltage (< 195 V) (appliance connected
via cable reel)
• OGS/OGB 10.20/12.20/20.20 (and 20.10 only SG)
starts poorly/does not start after glow electrode
replacement
- Wrong glow igniter fitted: short instead of long;
correct is 4018001 = long (wrong is 4018002 =
short)
• STL has triggered (test passage)
• Burner fan is not running (visual inspection or in
speed actual value in the service programmes)
• Interruption in monitoring electrode wiring
 
E05.1 No gas
• B7.1 Safety temperature limiter for hot air has
triggered (test passage)
• No gas at the burner HA1 (hot air1)
• In addition same causes possible as with E05.0

E05.2 No gas
• B7.2 Safety temperature limiter for steam generator
has triggered (test passage)
• No gas at the burner SG (steam generator)
• In addition same causes possible as with E05.0
 
E05.3 No gas
• No gas at the burner HA2 (hot air2)
• In addition same causes possible as with E05.0
 
E05.4-1 No gas
• Start speed at the burner HA1 not reached
 PWM signal interrupted
 
E05.4-2 No gas
• Start speed at the burner HA1 not reached
 Possibly voltage supply disturbed

E05.5-1 No gas
• Start speed at the burner SG not reached
 PWM signal interrupted

E05.5-2 No gas
• Start speed at the burner SG not reached
 Possibly voltage supply disturbed
 
E05.6-1 No gas
(only 20.10 / 20.20)
• Start speed at the burner HA2 not reached
 PWM signal interrupted
 
E05.6-2 No gas
(only 20.10 / 20.20)
• Start speed at the burner HA2 not reached
 Possibly voltage supply disturbed
 
E05.7-1 No gas
• Full load speed at the burner HA1 not reached
 PWM signal interrupted