Fault Codes - Rotex A1 BG Installation And Maintenance Instructions Manual

10 x Faults and malfunctions

10.3 Fault codes

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