Convotherm OEB Series Service Handbook page 250

Service manual OEB/OES/OGB/OGS
easy OEB OES OGB OGS
touch
KD / 19.08.2009
Error Error description
message
E03.zzz Other error variants
-xxx-yyy
E03.1 Fan malfunction
(excessive
temperature in the
motor winding)
thermoprotection
contact has tripped
E04.0 Auxiliary fan
malfunction
ID=36
Motor current too
high etc.: threshold
of 1.5A (V1-V2)
E05.0 No gas (after 2
ignition attempts no
confirmed gas
flame)
5_00e_Troubleshooting list and error messages - Electronics_h.doc
Possible cause or remedy
see the end of 5.1
For an explanation of the parameter xxx-yyy-zzz
•
see the end of 5.1
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
Auxiliary fan fault
•
Auxiliary fan wiring interrupted
•
Auxiliary fan blocked
•
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
•
page 12
page 12
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