![Daikin Rotex A1 BO Series Installation And Maintenance Instructions Manual Download Page 50](http://html1.mh-extra.com/html/daikin/rotex-a1-bo-series/rotex-a1-bo-series_installation-and-maintenance-instructions-manual_3404037050.webp)
50
FA ROTEX A1 BOe - 02/2014
10
x
Faults and malfunctions
1) see documentation "ROTEX RoCon BF Controller"
Tab. 10-1 Possible faults on the A1 BO
10.3 Fault codes
Tab. 10-2 Fault codes (can be detected by automatic firing)
STL switch off
Water throughput too low due to air inclusion
Ɣ
Vent system
Water flow too low due to valves closing too
quickly along the entire heating network
Ɣ
Use slow closing or timed valves, if needed, install
overflow valve
Pump standstill
Ɣ
Check mains and PWM control signal connection,
replace pump if necessary.
Storage tank switched off in operation without
hot water storage tank
Ɣ
Disconnect storage temperature sensor
Ɣ
Switch off storage tank charging circuit
Flue gas temperature
sensor switch off
Flue gas temperature too high
Ɣ
Clean the boiler
Malfunction
Possible cause
Possible solution
Code
Component/Designation
Fault
E1
Automatic firing unit
Interlocking fault
Safety temperature limit: Flow temperature >105 °C, return temperature >95 °C
E4
No flame detection at burner start.
E5
More than 5 flame interruptions during a continuous burner demand.
E11
Flame detection before burner start.
E15
Oil preheater does not switch within a 5 min. period.
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 minNew Reset only possible after 15 mins.
E17
Scatter (t
V
- t
R
) too big.
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