10
Faults and malfunctions
Installation and operating instructions
52
Daikin/ROTEX A2 F
Oil condensing boiler A2 F
008.1546499_02 – 04/2018 – EN
10.3
Fault codes
Code
Component/Designation
Error
E 129
Firing unit
Locking error
Inflow temperature exceeds limiter temperature (overtemperature, no heat dissipation).
E 130
Return flow temperature exceeds limiter temperature (overtemperature, no heat dissipation).
E 132
2x no flame formation at end of safety time (no gas, valves do not open, no ignition sparks).
E 133
Flame tear-off in the stabilisation phase or during operation after a restart attempt.
E 139
Flame was detected before starting the burner.
E 143
Timeout for oil preheater exceeded. Feedback signal could not be detected within the configured time.
E 146
Standstill oil pressure not detected.
E 148
Defective relay (non-resettable).
E 152
Speed not reached during pre- and post-ventilation (burner blower defective, power supply to blower,
electronics fault in blower, cable break).
E 154
Blower stationary position not detected (burner blower defective, electronics error in burner blower).
E157
Oil pressure has not reached the set point (from 3rd fault).
E 158
EEPROM fault (manufacturer’s parameters).
E 159
EEPROM fault (safety parameters).
E 162
Internal EEPROM data from BCC not consistent.
E 163
Activated BCC is not plugged in.
E 164
BCC data is not consistent.
E 165
BCC firmware does not match the firmware of the firing unit.
E 167
Error during BCC activation.
E 190
Actual pressure and oil pump speed do not match.
E 198
Oil pump standstill not detected.
E 216
Exceptional error of the operating system (reset by switching the A2 F off/on)
E 227
Internal fault of the automatic burner control unit (reset by switching the A2 F off/on)
Tab. 10-2
Fault code of locking faults (can be detected by the firing unit)
On the error display, "Inside device:" "Heating Module" is displayed
for the location information
Code
Component/Designation
Error
E 1
Firing unit
Temporary malfunction,
burner shutdown, automatic
release when fault condition
no longer active.
Inflow temperature exceeds monitor temperature (overtemperature, no heat dissipation).
E 2
Return flow temperature exceeds monitor temperature (overtemperature, no heat dissipation).
E 12
Infeed temperature sensor defective.
E 13
Flue gas sensor defective.
E 17
Pressure sensor defective.
E 38
Update error.
E 90
Communication interrupted between firing unit and controller circuit board (check cable and plug connec-
tions, total reset, replace controller circuit board, replace firing unit).
E 95
System is in programming mode.
E 96
5x reset within 15 min. Another reset is not possible until after a further 15 min.
E 99
Firing unit internal fault.
E 4
Firing unit error messages
Temporary fault, device is
attempting to restart.
No flame formation at end of safety time (no gas, valves do not open, no ignition sparks).
E 5
Flame tear-off during stabilisation time (ionisation electrode defective or soiled).
E 24
Value exceeds/falls below min. and max. limits during flame stabilisation or control operation (blower de-
fective, power supply to blower, electronic fault in blower, cable break).
E 29
Oil pressure has not reached start setpoint,
E 61
Regulation deviation during ionisation process too high (1st fault) (burner earthed incorrectly or faulty sup-
ply voltage firing unit, oil flow pressure too low, ionisation electrode bent or oxidised, ionisation track
faulty, safety oil control block defective).
E 62
Actual oil pressure and oil pump speed do not match.
E 189
▪ Oil pressure setpoint is not reached until burner operation.
▪ Oil pressure continuously deviates by more than ± 0.25 bar from the setpoint for 60 seconds.
▪ The current oil pressure continuously exceeds the maximum limit value.
Tab. 10-3
Fault codes for temporary malfunctions (can be detected by the firing unit)
