7 x Errors and faults
Daikin RoCon
Daikin Control unit
008.1543999_00 – 03/2017 – EN
Operating instructions
55
7.3 Error codes
Code Component/Designation Error
E1
Firing unit
Locking error
Safety temperature limitation: T-HS >105 °C, T-Return >95 °C
E4 No flame detection during the burner start.
E5 More than 5 flame interruptions during a continuous burner requirement.
E11 Flame detection prior to burner start.
E12 t
V
or t
R
temperature sensor defective (cable break, short circuit).
E15 Oil preheater does not switch within 5 min.
E34 BCC data conflict
E35 Required BCC not detected.
E36 BCC data conflict
E37 BCC firmware does not match the firmware of the firing unit.
E38 Incorrect BCC number.
E39 BCC system error
E65
During calibration, deviation from previous value too high (unclean supply air, electrode re-
placement, electrode defective).
E99 Internal error of the firing unit.
E129 T-HS exceeds limiter temperature (excessive temperature, no heat dissipation)
E130 T-Return exceeds limiter temperature (excessive temperature, no heat dissipation)
E132
5x no flame formation at the end of the safety time (no gas, valves do not open, no ignition
sparks)
E138 5x flame failure at the end of the safety time (ionisation electrode defective or dirty)
E148
2x gas valve test negative. A flame is still detected 15 s after the burner shut-down (gas valve
jams).
E152
Speed not reached during pre- and post-ventilation (burner blower defective, power supply to
blower, electronics error in blower, cable break).
E154
Blower stationary position not reached (burner blower defective, electronics error in burner
blower).
E158 EEPROM error (manufacturer’s parameter).
E159 EEPROM error (safety parameter).
E189
Control deviation of the ionisation current too high (from 2nd error) (faulty burner earthing or
firing unit supply current, gas flow pressure too low, ionisation electrode bent or oxidised, ion-
isation track faulty, safety gas control block defective).
E190
– Impermissible gas valve initialisation within 10 s (from 2nd error) or
– blower falls below 80 % of the minimum speed within 10 s (from 2nd error).
(Burner blower defective, incorrect gas type set, missing/wrong gas nozzle, safety gas con-
trol block defective, gas flow pressure too low)
E191 Internal electronic error - from 2nd error (switch device on/off).
E192
A value fell below the minimum limit values during calibration (flue gas recirculation, elec-
trodes oxidised, ionisation track faulty, poor earthing, transition resistances).
E194
Interruption during calibration (from 2nd error) (no heat dissipation, minimum calibration time
not met).
E195 Impermissible internal basic value (electronic error).
E202
A value exceeded the maximum limit values during calibration (unclean supply air, basic
value too high).
E215 EEPROM error (electronics error).
E226
Error found in the flame amplifier evaluation during the idle state check (electronics error,
short circuit of ionisation electrode or cable).
E227 Internal error of the firing unit.
Tab. 7-1 Error code of locking faults (can be detected by the firing unit)
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