52
FA ROTEX A1 BGe - 02/2014
10 x Faults and malfunctions
10.3 Fault codes
Tab. 10-2 Fault codes (can be detected by automatic firing)
Code Component/Designation Fault
E1
Automatic firing unit
Interlocking fault
Safety temperature limit: Flow temperature >105 °C, return temperature >95 °C
E3 Fan speed: Deviation from the set value too great.
E4 No flame detection at burner start.
E5 More than 5 flame interruptions during a continuous burner demand.
E11 Flame detection before burner start.
E20 Gas valve defective (flame detection after expiry of the burner demand).
E30 Internal fault
E31 Internal fault
E34 BCC data conflict
E35 Necessary BCC not detected.
E36 BCC data conflict
E37 BCC firmware does not match automatic firing firmware.
E38 Wrong BCC number.
E39 BCC system fault
E99 Safety shutdown
E6
Automatic firing unit
Non-interlocking fault
Flow temperature (t
V
) is higher than the set maximum boiler temperature (parameter
[Max T-HS] + 5 K).
E10 5x Reset within 15 min New Reset only possible after 15 mins.
E12
Flow and return temperature sensors: Measured value outside measuring range, tempera-
ture sensor defective.
E17 Scatter (t
V
- t
R
) too big.
E18 Return temperature higher than inflow temperature for longer than 5 secs.
E19 Flow temperature increase too rapid.
E32 Supply voltage too low.
E48 No communication with the automatic firing for longer than 2 mins.
E50 BCC activation
E52 BCC conformity
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