ID
Description
Desig. Details
ID7306 Open contact - refrig-
erant probe (I/O 2)
S07.2 Open contact - refrigerant probe (I/O 2)
ID7307 Short circuit - refrig-
erant probe (I/O 2)
S07.2 Short circuit - refrigerant probe (I/O 2)
ID7308 WKF fault code E464
Overcurrent at the inverter module IPM (IGBT transistor
module). Check software status for the motherboard
ID7309 WKF fault code E425
Phase fault malfunction. A phase conductor is missing at the
frequency converter (can only occur with WKF 180 - otherwise,
check motherboard version)
ID7310 WKF fault code E203
Communication error between motherboard (7-segment dis-
play) and inverter board
ID7311 WKF fault code E466
Under-voltage or over-voltage in the intermediate DC circuit of
the inverter.
ID7312 WKF fault code E469
Voltage probe fault in the intermediate DC circuit of the
inverter. Replace inverter board if necessary
ID7313 WKF fault code E458
Implausibly high current at the current probe or fault at the
BLDC motor for fan 1.
ID7314 WKF fault code E475
Malfunction at the BLDC motor for fan 2
ID7315 WKF fault code E461
Implausibly low current at the current probe or malfunction on
the inverter board at compressor start (can occur with com-
pressor damage)
ID7316 WKF fault code E467
Missing phase conductor on the compressor
ID7317 WKF fault code E462
Overcurrent fault (primary side) - check power supply / fuse for
the EMI board
ID7318 WKF fault code E463
Compressor overtemperature (OLP). Probe value greater than
115 °C (below 12.7 k
W
). Can be caused by a jammed expan-
sion valve
ID7319 WKF fault code E554
Refrigerant quantity / refrigerant loss malfunction
ID7320 WKF fault code E556
Power ratings for the com. kit board (IM) and the motherboard
(AM) differ - check board versions.
ID7323 Open contact - brine
inlet probe
S07
Open contact - brine inlet probe
ID7324 Short circuit - brine inlet
probe
S07
Short circuit - brine inlet probe
ID7325 Compressor start error
µ
PC
Compressor start error
ID7328
Open contact -
2nd mixed heating cycle
inlet temp.
S06
Open contact - 2nd mixed heating cycle inlet temp.
ID7329
Short circuit - 2nd
mixed heating cycle
inlet temp.
S06
Short circuit - 2nd mixed heating cycle inlet temp.
ID7332 Anti-freeze protection
µ
PC
The anti-freeze protection in the heat pump's heat exchanger
was triggered due to an inlet temperature that is too low. After
eliminating the cause of the error, the controller must be
restarted to reset the error.
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