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
