Additional parameters avai-
lable for system analysis:
Parameter 43 QUICK START:
Check all heat pump compressors by imple-
menting a quick start.
Parameter 44 RELAY TEST:
Test all relays in WPM II
Parameter 49 TYPE IWS:
Software check of all slide switches (WP-Typ)
adjustments (IWS)
Parameter 50 ANALYSIS:
System analysis for checking all existing BUS
users and the compressor stages, which are
switched ON.
Parameter 52 HP RESET
Heat pump reset to clear all saved faults.
Fault display: Sensor fault
The fault code refers to tempera-
ture sensors which can be called
up under the system parameter Info. Temp.
These faults are not entered into the
error list, parameter 46. 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 8).
The heat pump does not run
The heat pump is in standby mode [ ]
Remedy: Change to programming mode
Lockout active; standby symbol ashing [ ]
Remedy: Wait; the heat pump restarts auto-
matically at the end of the lockout time.
There is no heat demand
Remedy: System parameter INFO. TEMP.
Check temperature, compare actual with set
temperature
BUS cable incorrectly connected
Remedy: Check that high, low and ground of
the BUS cable from the heat pump to the
WPM II are not interchanged. How many BUS
users were found by WPM II? Check via para-
meter 51 DIAGNOSTIC
Possibly incorrect fuse rating
Remedy: Check in line with the technical de-
tails in the heat pump installation instructions.
Five heat pump-specic faults or hardware
faults have occurred in the heat pump sys-
tem within two hours. The system is perma-
nently shut down.
Remedy: Reset the HP (parameter 52)
Sensor Fault code
Outside temperature E 75
Actual room temp. (H2) E 80
Actual DHW temp. E 76
Actual HP return temp. (H1) E 73
Actual mixer flow temp. (H2) E 70
Actual HP flow temp. E 72
Actual boiler temp. HS 2 E 77
Actual source flow temp. E 71
Flow or return sensor
(for heat metering) E 128
DHW or collector sensor
(for solar heating operation) E 129
Observe the list under system parameter
INFO TEMP. (see page 8).
Error message DCO active
In conjunction with the DFÜ controller, the
above sensor breaks lead to the error codes
E70 to 129 being transmitted as text mes-
sages to your mobile. In addition, further error
codes are transmitted as text messages as fol-
lows: E2 for central fault, E4 for high pressure,
E5 for sensor break IWS condenser sensor,
E16 defrost error and E1 for relay driver, relay
level, hexadecimal switch, fan driver, fan speed,
reset module, RAM and ROM errors.
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