41
2.14 Troubleshooting
Faults/errors in the system or in the heat
pump are indicated on the display. All
parameters required for extensive system
analysis can be checked under the system
parameters Commissioning and INFO TEMP.
For troubleshooting, analyse all available
WPMi parameters before opening the heat
pump control panel.
The controller does not display the fact, that
the high limit safety cut-out of the backup
heating system has responded.
The high limit safety cut-out (item. 8,
Fig. 1, page 14) can be reset by your heating
contractor through pressing the reset button.
The high limit safety cut-out response is
generally caused by air in the heating circuit
or an inadequate heating volume flow.
2.14.1 Fault display:
Heat pump-specific or hardware faults
Fault message (flashing)
All faults are displayed.
All faults cause the heat pump to shut down.
The idle time is set and, with the exception of
"HOT GAS MAX" all faults are written to the
fault list.
2.14.2 Fault display:
Sensor break = sensorfault
This fault code refers to temperature
sensors which can be called up
under the system menu item "Info Temp".
These faults are not entered into the fault
list. The system will not be shut down.
The display message will extinguish
immediately after the fault has been
removed.
Observe the list under system parameter
"Info Temp" (see page 9).
Sensor Fault
code
Outside temperature E 75
Remote control E 80
Actual DHW temperature E 76
Actual HP return temperature (H1) E 73
Actual mixer flow temperature (H2) E 70
Actual HP flow temperature E 72
Actual source flow temperature E 71
High pressure sensor
E 130
Low pressure sensor
(only for triple phase)
E 128
2.14.3 Fault message with DCO enabled
In conjunction with the Remote Data Transfer
controller DCO enabled, the fault codes (E75
to E130) are transmitted by text message to an
authorised recipient, if the above sensor faults
occur.
In addition, the following fault codes are
transmitted by text message:
Contactor stuck E 20
No power E 21
Low pressure E 22
High pressure E 23
HP sensor max E 24
2.14.4 The heat pump does not run
The heat pump is in standby mode
[ ]
Remedy: Change to automatic mode
The power supply has been blocked; the
standby symbol flashes
[ ]
Remedy: Wait. The heat pump starts again
automatically after the power-off
time has expired.
There is no heat demand
Remedy: System parameter "Info Temp"
Check temperatures; compare the
actual with the set temperature
Possibly incorrect fuse rating
Remedy: See the specification
Under these circumstances, you can
only restart the heat pump after the
fault has been removed and the heat pump
has been reset (parameter HEAT P RESET).
Additional parameters available for system
analysis:
Parameter Quick start:
Check the heat pump compressor by
implementing a quick start
Parameter RELAY TEST:
Test all relays in the WPMi
Parameter Analysis:
System analysis for checking all existing
BUS users
Parameter HEAT P RESET:
Heat pump reset to delete all fault messages.
Reset options WPMi
Reset by turning the rotary switch
from Auto to Reset and back again. All system-
specific programs remain intact. The error list
will not be deleted.
Reset by turning the rotary switch
from Auto to Reset and back again while hol-
ding down the PRG key. EEPR must be shown
in the display. (EEPROM hardware reset). The
WPMi is reset into the as delivered condition.
The error list will be deleted.
For single phase equipment, parameter SIN-
GLE PHASE must be set to ON again.
Reset options WPMiw
Reset by turning the rotary switch
from Auto to Reset and back again. All system-
specific programs remain intact. The error list
will not be deleted.
Reset by turning the rotary switch
from Auto to Reset and back again while hol-
ding down the PRG key. EEPR must be shown
in the display. (EEPROM hardware reset). The
WPMi is reset into the as delivered condition.
The error list will be deleted.
Following a hardware reset, HP NOT PAR is
shown on the display when the control flap is
closed.
The heat pump type has to be reset.
HEAT PUMP appears on the display when the
control flap is opened. After pressing PRG,
select the heat pump type using the rotary se-
lector. Confirm the heat pump type by pressing
PRG.
The heat pump type is shown on the type
plate.
For single phase appliances, set parameter
SINGLE PHASE to ON again.
SENSOR BROKEN
HP SENSOR MAX
To Next Page
Loading...
Need help?
General
