REMKO WKF-compact Series Assembly And Operating Instructions Manual page 83

ID Description
Anti-freeze protection
ID7231
(I/O 2)
Open contact - mix.
ID7236 heating cycle inlet
temp. probe
Short circuit - mix.
ID7237 heating cycle inlet
temp. probe
Open contact - mix.
ID7238 heating cycle return
temp. probe
Short circuit - mix.
ID7239 heating cycle return
temp. probe
Min. medium flow rate
ID7250
(I/O 2)
Min. volumetric flow
ID7251
rate
Heat pump
ID7252
malfunction code
Heat pump 2
ID7253
malfunction code
ID7254 General inverter fault
ID7255 EEPROM error
ID7256 Envelope fault
ID7257 Fan overload
Maximum hot gas tem-
ID7258
perature
High pressure malfunc-
ID7259
tion
High pressure malfunc-
ID7260
tion transducer
ID7262 Fault with probe B2
ID7264 Fault with probe B4
ID7267 Fault with probe B7
Desig. Details
The anti-freeze protection in the heat pump's heat exchanger
was triggered due to an inlet temperature of less than 5°C.
After eliminating the cause of the error, the controller must be
restarted to reset the error
S12 Open contact - mixed heating cycle inlet temperature probe
S12 Short circuit - mixed heating cycle inlet temperature probe
S11 Open contact - mixed heating cycle return temperature probe
S11 Short circuit - mixed heating cycle return temperature probe
The medium flow rate fell below the heat pump's minimum
medium flow rate due to defrosting or in cooling mode. After
eliminating the cause of the error, the controller must be
restarted to reset the error
The medium flow rate fell below the heat pump's minimum
medium flow rate due to defrosting or in cooling mode. After
eliminating the cause of the error, the indoor and outdoor units
must be restarted to reset the error
S20 Heat pump malfunction code
S20.2 Heat pump 2 malfunction code
General inverter fault - please contact an authorised service
technician
EEPROM error. Please contact an authorised service techni-
cian
Envelope fault - the compressor operates outside the pro-
grammed curve. Please contact an authorised service techni-
cian
The compressor is disabled due to a fan overload
Maximum hot gas temperature - the compressor is blocked by
having reached the maximum hot gas temperature
High pressure malfunction. If this fault occurs frequently,
please contact an authorised service technician
The compressor is disabled due to a high pressure malfunc-
tion
Fault with probe B2 - Please check probe B2 and the connec-
tion to the inverter board
Fault with probe B4 - Please check probe B4 and the connec-
tion to the inverter board
Fault with probe B7 - Please check probe B7 and the connec-
tion to the inverter board
83