Specifications
Table Of Contents
60
If it is possible, your Coner-
gy WR unit will resume the
power feeding operation af-
ter successfully completing
another attempt to connect
405 Incorrect or faulty ENS-
card
If Service-Code is dis-
played permanently, you
should contact a trained
service technician
Conergy WR disconnects
from the mains supply for
safety reasons
406 AC temperature sensor
faulty
If Service-Code is dis-
played permanently, you
should contact a trained
service technician
Conergy WR disconnects
from the mains supply for
safety reasons
407 DC temperature sensor
faulty
If Service-Code is dis-
played permanently, you
should contact a trained
service technician
Conergy WR disconnects
from the mains supply for
safety reasons
408 Direct current input If Service-Code is dis-
played permanently, you
should contact a trained
service technician
Conergy WR does not
switch itself onto the mains
supply.
409 No +15V supply avai-
lable for the control
electronics
If Service-Code is dis-
played permanently, you
should contact a trained
service technician
If it is possible, your Coner-
gy WR unit will resume the
power feeding operation af-
ter successfully completing
another attempt to connect
401 no internal communi-
cation with power sta-
ge
Class 4 service codes require in some cases the intervention of a trained
Conergy service technician.
Code Designation Description
Class 4
If an error code is dis-
played permanently, you
should contact a trained
service technician
Repair
If it is possible, your Coner-
gy WR unit will resume the
power feeding operation af-
ter successfully completing
another attempt to connect
402 no internal communi-
cation with ENS
If Service-Code is dis-
played permanently, you
should contact a trained
service technician
If it is possible, your Coner-
gy WR unit will resume the
power feeding operation af-
ter successfully completing
another attempt to connect
403 EEPROM faulty If Service-Code is dis-
played permanently, you
should contact a trained
service technician
If it is possible, your Coner-
gy WR unit will resume the
power feeding operation af-
ter successfully completing
another attempt to connect
404 No communication
possible between the
control unit and ENS
Conergy WR has no net-
work connection. Check
if the mains supply isola-
tor is switched on
If Service-Code is dis-
played permanently, you
should contact a trained
service technician