INSTALLATION
Troubleshooting
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14.4 Checking the IWS DIP switch settings
If the fault cannot be located during a service using the heat pump
manager, open the control panel in emergencies and check the
IWS settings.
f Remove the cover (see chapter “Troubleshooting/ Removing
the casing parts”).
IWS
BA
D0000063997
1
2
3
4
1 Reset button
2 DIP switch (WP-Typ)
3 DIP switch (BA)
4 LEDs
DIP switch (WP-Typ)
The DIP switch (WP-Typ) on the IWS serves to set the relevant
heat pump type.
Factory setting
Compressor mode with electric emergency/booster heater
WP - Typ
ON
1 2 3 4
D0000057054
f Check whether the DIP switch is set correctly.
Compressor mode with an external second heat generator
!
Material losses
In this case, do not connect the electric emergency/boost-
er heater.
If the appliance is operated in dual mode with an external second
heat generator, set the DIP switch as follows.
WP - Typ
ON
1 2 3 4
D0000057055
DIP switch (BA)
f Check whether the DIP switch(BA) is set correctly.
Heating and cooling operation
BA
ON
1 2 3 4
D0000057052
14.5 LEDs (IWS)
BA
D0000063997
1
2
1 Reset button
2 LEDs
The following table shows the meaning of the LEDs on the IWS.
LED indicator Meaning
Red LED flashes Single fault. The appliance shuts down. The appli-
ance restarts after 10 minutes. The LED goes off.
Red LED illuminates
Multiple faults have occurred. The appliance shuts
down. The appliance only restarts following a reset
on the IWS. This also resets the internal fault coun-
ter. The appliance can be restarted after 10min-
utes. The LED goes off.
Green LED (centre)
flashes
The heat pump is initialising.
Green LED (centre) illu-
minates
The heat pump was initialised successfully and the
connection with the WPM is active.
Faults indicated by the red LED:
- High pressure fault
- Low pressure fault
- Central fault
- Hardware fault on the IWS
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