Vaillant geoTHERM VWS Series, Руководство по установке

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Installation instructions geoTHERM VWS/VWW 0020057444_01
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10.5 Blocking error
The heat pump is shut down. It can only be restarted by
resetting the error after removing the cause of the fault
(see Menu I 1).
With the exception of Errors 90 and 91, these do not
need to be reset. The heat pump starts again when the
cause of the error has been removed.
Emergency mode
Depending on the nature of the malfunction, there are
settings that can be made to allow the heat pump to
continue operating in an emergency mode (by means of
the integrated electrical heating) until the fault is
cleared, either in heating operation (display: "CH priori-
ty"), hot water operation (display: "DHW priority") or
both (display: "CH priority/DHW priority"), see the fol-
lowing tables, "Emergency operation" column.
Fault
code
Error text/description
Emergency
mode
Possible cause Remedy
32 Error, heat source sensor T8
Short circuit in sensor possible The internal sensor for the source outlet
temperature is defective or not properly
plugged into the PCB. Check the plug contact on the PCB
and the cable harness, check the sen-
sor for correct position and function
(resistance measurement using VR 11
characteristics, see Appendix), re-
place sensor.
33 Error, heating circuit pressure
sensor
Short circuit in pressure sensor
The pressure sensor in the heating circuit
is defective or not properly plugged in.
Check the plug contact on the PCB
and the cable harness, check pres-
sure sensor for correct functioning,
replace pressure sensor.
34 Fault with brine pressure sen-
sor
Short circuit in pressure sensor
possible The pressure sensor in the heat source cir-
cuit is defective or not properly plugged
in.
40 Error comp outlet sensorT1
Short circuit in sensor
possible The internal temperature sensor on the
high pressure side of the compressor is
defective or not properly plugged into the
PCB.
Check the plug contact on the PCB
and the cable harness, check the sen-
sor for correct position and function
(resistance measurement using VR 11
characteristics, see Appendix), re-
place sensor.
41 Error, heat source sensor T3
Short circuit in sensor
possible The internal sensor for the source inlet
temperature is defective or not properly
plugged into the PCB.
42 Error HP return sensor T5
Short circuit in sensor
possible The internal temperature sensor on the
heating return line is defective or not
properly plugged into the PCB.
43 Error HP flow sensor T6
Short circuit in sensor
possible The internal temperature sensor on the
heating flow line is defective or not prop-
erly plugged into the PCB.
44 Error, external sensor AF
Short circuit in sensor
possible The outside temperature sensor or its con-
necting cable is defective or it is not con-
nected correctly. Check the ProE plug on the PCB,
check the connecting cable, replace
the sensor.
45 Error DHW tank sensor SP
Short circuit in sensor
possible The cylinder temperature sensor is defec-
tive or it is not connected correctly.
Check the ProE plug on the PCB,
check the sensor for correct function
(resistance measurement using VR 10
characteristics, see Appendix), re-
place sensor.
46 Error HB flow sensor VF1
Short circuit in sensor
possible The upper sensor in the buffer cylinder is
defective or it is not connected correctly.
47 Error HB return sensor RF1
Short circuit in sensor
possible The lower sensor in the buffer cylinder is
defective or it is not connected correctly.
48 Error flow sensor VF2
Short circuit in sensor
DHW opera-
tion possi-
ble The contact temperature sensor VF2 in
the heating circuit is defective or it is not
connected correctly.
52 Sensors do not match the hy-
draulic plan _ Hydraulic plan not entered correctly, sen-
sors not connected correctly. Check the hydraulic plan and sensor
positions using the existing system.
Table 10.4 Fault-induced shutdown
10 Troubleshooting and diagnostics