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Fault Indicator Type WP-VT (2141)
Alarm
Display flashing
Meaning
Effect/action
1
2
• No 1
red
red
Temperature sensor in
Heat pump and additional
the upper tank -
heating is shut down.
• No 2
red
red
faulty or defective
Inform service.
• No 3
red
-
Temperature sensor in
Compressor not running.
evaporator
Inform service.
• No 4
red
-
Faulty or defective
Replace defective sensor.
• No 5
red
-
1. Pressure switch alarm
compressor shuts down and
(High-pressure fault)
restarts automatically. Eliminate
fault / inform service. maybe
Acknowledge (see page 5)
• No 6
red
-
2. Pressure switch alarm
and acknowledge in user menu
(high-pressure fault)
It is essential to inform service
• No 7
red
-
For information: not relevant
(inactive)
• No 8
red
-
Temperature sensor
Information:
„Temp 1“
Inform service. Replace
faulty or defective
defective sensor.
(Service-Program)
• No 9
red
-
Protective magnesium
Information:
anode exhausted
Install new protective anode.
Inform service.
• No 10
red
-
Legionella temperature
Information :
not reached
Check settings.
Inform service.
Alarm overview / fault overview
Alarm/fault overview WP-VT
Alarms and faults can be seen in the user level (alarm mode) and acknowledged.
If the error is not eliminated, then, even if acknowledged, the alarm display remains. If several alarms/faults arise,
they are placed in sequence and shown as a priority list. The alarms/faults are divided into 3 groups (alarm levels).
Alarm group
Alarm-No
Status/Effect
Remarks/Action
1 General equipment alarm
1 and 2
Equipment is turned off/ No hot water/ see table
no operation possible
below
2 Working fluid circulation
3, 4, 5
Heat pump is shut down/ Hot water with additional heating,
Alarm (heat pump)
and 6
operation only possible switch on additional heating/ see
with additional heating. table below
3 Information
6, 7, 8
Operation remains
irregularities in operation/
9 and 10
possible/ the displayed see table below
alarms must be
eliminated soon
1 Heat pump operation and fault
display. Flashing red = fault in
alarm group 2 or 3
2. Additional heating operation and
fault display (boiler or immersion
heater)
If both displays (1+2) are flashing
red = fault in alarm group 1
3 Display
Alarm
9 0 0
Acknowledge =
press knob
Control Panel
1 2 3
Fault Indicator
