Convotherm OEB Series - Page 250

Service manual OEB/OES/OGB/OGS
KD / 19.08.2009 5_00e_Troubleshooting list and error messages - Electronics_h.doc
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easy
touch
OEB OES OGB OGS Error
message
Error description Possible cause or remedy
see the end of 5.1  page 12
 
E03.zzz
-xxx-yyy
Other error variants
• For an explanation of the parameter xxx-yyy-zzz
see the end of 5.1  page 12
 
E03.1 Fan malfunction
(excessive
temperature in the
motor winding)
 thermoprotection
contact has tripped
• Fan motor has excessive temperature in the
winding (over 165°C)
a) One phase is missing from the power connection
b) Fan motor is defective
c) One phase is not connected through from the
contactor
d) Microfuse F10 (6.3 A or 10 A for floor models)
has tripped
e) Thermoprotection contact in the motor winding
(bi-metallic strip) defective or interrupted
• Burner speed (fan) not reached
• Motor speed not reached
• Speed sensor on the motor defective
• Frequency converter defective (with single phase)
• Frequency converter (FC) (=all 1 NPE appliances)
- Old hardware FC (above all appliances before
1.10.04 without gas module)
- Replace FC (5014001) (current version HW
26.11.26.11.04 / SW 1.2!)
- Update CM and OM software to the current
version (install 3.14 or above)
• Wiring space temp. too high (but E02 is not being
displayed yet  Check wiring space cooling
    
E04.0
ID=36
Auxiliary fan
malfunction
Motor current too
high etc.: threshold
of 1.5A (V1-V2)
• Auxiliary fan fault
• Auxiliary fan wiring interrupted
• Auxiliary fan blocked
 
E05.0 No gas (after 2
ignition attempts no
confirmed gas
flame)
• No gas or error in the burner system
• Glow igniter defective (measure current approx. 1.2A)
Glow insert displaced in metal housing (replace
glow igniter)
• Ionisation electrode defective
- Short circuit monitoring electrode (observe ignition
of the burner in the start phase; if flame was
present, circuit is the cause). Watch out for short
circuit between cable and housing in particular
- 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