Diagnosis Codes For Diagnosis Level 2 - Vaillant ecoTEC VU 466/4 Installation And Maintenance Instructions Manual

Display Meaning
d.14 Pump speed target value
d.17 Heating flow/return regulation changeover
d.18 Specifying the pump operating mode
d.20 Maximum setting for cylinder target value
d.26 Additional relay control ecoTEC
d.27 Switch of relay 1 on the
multifunctional module 2 in 7
d.28 Switch of relay 2 on the
multifunctional module 2 in 7
d.50 Offset for minimum speed
d.51 Offset for maximum speed
d.60 Number of safety thermostat shutdowns
d.61 Number of faults of the automatic combustion system
d.64 Average ignition time
d.65 Maximum ignition time
d.67 Remaining burner anti-cycling time
d.68 Unsuccessful ignitions at 1
d.69 Unsuccessful ignitions at 2
d.70 not relevant
d.71 Target value maximum flow temperature
d.72 Pump overrun time after cylinder charging
d.75 Maximum charging time for cylinder without an own
control system
d.77 Limitation of cylinder charging output in kW
d.78 Limitation of cylinder charging temperature in °C
d.80 Operating hours heating
Table 9.3 Diagnosis codes for diagnosis level 2 (continued on
next page)
Installation and maintenance instructions ecoTEC 0020029172_03
st
attempt
nd
attempt
Display value/adjustable value
Target value of internal pump in % Possible settings:
0 = auto (factory setting)
1 = 53%
2 = 60%
3 = 70%
4 = 85%
5 = 100%
0 = flow, 1 = return (factory setting: 0)
0 = overrun
1 = continuous
2 = intermittent (factory setting)
40 to 70°C (factory setting: 65°C)
1 = circulator
2 = ext. pump (factory setting)
3 = cylinder charge pump
4 = extractor hood
5 = ext. solenoid valve
6 = ext. fault message
7 = not active
8 = remote control eBUS (not yet supported)
9 = legionella pump (not active)
1 = circulator (factory setting)
2 = ext. pump
3 = cylinder charge pump
4 = extractor hood
5 = ext. solenoid valve
6 = ext. fault message
7 = not active
8 = remote control eBUS (not yet supported)
9 = legionella pump (not active)
1 = circulator
2 = ext. pump (factory setting)
3 = cylinder charge pump
4 = extractor hood
5 = ext. solenoid valve
6 = ext. fault message
7 = not active
8 = remote control eBUS (not yet supported)
9 = legionella pump (not active)
in rpm/10, setting range: 0 to 300 (factory setting 30)
in rpm/10, setting range: -99 to 0 (factory setting -45)
Number
Number of unsuccessful ignitions in the last attempt
in seconds
in seconds
in minutes
Number
Number
Not relevant
Setting range in °C: 40 to 85 (factory setting: 75)
Setting range in seconds: 0, 10, 20 to 600
(factory setting: 80 s)
Setting range in min: 20 - 90 (factory setting: 45 min)
Setting range in kW: depending on boiler
(factory setting: maximum output)
Setting range in °C: 55 to 85 (factory setting: 80)
Note: Chosen value must be at least 15 K or 15 °C above set cylinder
target value.
1)
in h
Troubleshooting 9
45