Vaillant ecoPOWER 3.0 /2 Installation And Maintenance Instructions Manual page 25

Motor electronics fault
Fault code (20-digit*)
1–4 5–8 9–12
E5
E5
E5
E5
E5
E5
E5
E5
E5
E5
E5
E5
E5
* Blank spaces are shown in the display with the value 0
Motor electronics safety fault
Fault code (20-digit*)
1–4 5–8 9–12
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
* Blank spaces are shown in the display with the value 0
0020241403_02 ecoPOWER 3.0 /2, ecoPOWER 4.7 /2 Installation and maintenance instructions
13 14 15 16 17–20
1
2
4
8
1
2
4
8
1
2
4
8
1
2
4
8
13–16 17 18 19 20
1
2
4
8
1
2
4
8
1
2
4
8
1
2
4
8
Description
CJ-125: Fault Vbatt too low
CJ-125: Heater fault (short circuit to Vbatt)
GM stepper motor: Interruption
GM stepper motor: Blocked
DK stepper motor: Interruption
DK stepper motor: Blocked or too many step losses
Reserve
Coolant temperature too high
Coolant sensor (invalid value)
Motor false start
12 V supply voltage too high/too low
Communication to the control process
Electronics not enabled (emergency shutdown)
Target speed deviation
Reserve
Reserve
Description
Oil pressure
Lambda sensor (deviation from the control process)
Gas relay
Programme flow
Self-test
CJ-125: VM fault (short circuit to GND)
CJ-125: VM fault (short circuit to Vbatt)
CJ-125: UN fault (short circuit to GND)
Reserve
CJ-125: UN fault (short circuit to Vbatt)
CJ-125: Pump current fault (short circuit to GND)
CJ-125: Pump current fault (short circuit to Vbatt)
CJ-125: Heater current fault (short circuit to GND)
CJ-125: Heater fault (interruption)
GM stepper motor: Too many step losses
Reserve
Appendix
25