Error Diagnosis / Error Messages - Alpha-InnoTec Luxtronik Operating Manual

Error Diagnosis / Error messages

No. Display
701 Error low pressure.
Please call fitter
702 Low pressure stop
RESET autom.
703 Antifreeze
Please call fitter
704 Error hot gas
Reset in hh:mm
705 Motor protection VEN
Please call fitter
706 Motor protection BCP
Please call fitter
707 Coding of HP
Please call fitter
708 Return sensor
Please call fitter
709 Flow sensor
Please call fitter
710 Hot gas sensor
Please call fitter
711 External temp. sensor
Please call fitter
712 Domestic hot water sensor.
Please call fitter
713 HS-on sensor
Please call fitter
714 Hot gas SW
Reset in hh:mm
715 High-pressure switch-off
RESET autom.
716 High-pressure fault
Please call fitter
717 Flow HS
Please call fitter
718 Max. outside temp.
RESET autom. in hh:mm
719 Min. outside temp.
RESET autom. in hh:mm
720 HS temperature
RESET autom. in hh:mm
721 Low-pressure switch-off
RESET autom.
722 Tempdiff HW
Please call fitter
723 Tempdiff SW
Please call fitter
We reserve the right to make technical changes | 83055400fUK – Translation of the original instruction manual (2.1) | ait-deutschland GmbH
Description
Low pressure pressostat or low-pressure sensor in the cooling
circle has responded (L/W) or for longer than 20 seconds (S/W).
Only possible for L/W devices: Low pressure in the cooling circle
has responded. After some time, automated HP restart.
Only possible for L/W devices: If the heat pump is running and
the temperature in flow is < 5 °C, antifreeze is detected.
Maximum temperature in the hot gas cooling circle exceeded.
Automatic HP restart after hh:mm.
Only possible for L/W devices: Motor protection has responded. Check set value and ventilator / BCP.
Option only possible for S/W- or W/W devices Motor protection
of the brine or well water circulating pump or the compressor
has responded.
Break or short-circuit of the coding bridge in HP after the first
switch-on.
Break or short-circuit in the return sensor.
Break or short-circuit in the flow sensor No fault shutdown for
S/W- or W/W devices.
Break or short-circuit in the hot gas sensor of the cooling circle. Check hot gas sensor, plug and connection
Break or short-circuit in the external temperature sensor No
fault shutdown. Fixed value to -5 °C.
Break or short-circuit in the domestic hot water sensor No fault
shutdown.
Break or short-circuit in the heat source sensor (inlet).
Check thermal application limit of the HP. Domestic hot water
off for hh:mm.
High pressure in the cooling circle has responded. After some
time, automated HP restart.
High pressure pressostat in the cooling circle has responded
several times.
Flow switch for W/W devices has responded during the pre-
rinsing time or operation.
Only possible for L/W devices: Outside temperature has
exceeded permissible maximum value. Automatic HP restart
after hh:mm.
Only possible for L/W devices: Outside temperature has fallen
below the permissible minimum value. Automatic HP restart
after hh:mm.
Option only possible for S/W- or W/W devices Temperature at
evaporation outlet has fallen below the safety value on the HS
side several times. Automatic HP restart after hh:mm.
Low pressure pressostat or low-pressure sensor in the cooling
circle has responded. After some time, automated HP restart
(S/W and W/W).
Temperature spread in the heating mode is negative
(=erroneous).
Temperature spread in the domestic hot water mode is
negative (=erroneous).
Remedy
Check HP for leakage, switching point
pressure state, defrosting and T-outd.min.
Check HP for leakage, switching point
pressure state, defrosting and T-outd.min.
Check HP power, defrost valve and heating
system.
Check coolant quantity, evaporation,
overheating flow, return and HS-min.
Check set values, compressor, BOS.
Coding resistance in HP, check plug and
connection line.
Check return sensor, plug and connection
line.
Check flow sensor, plug and connection
line.
line.
Check external temperature sensor, plug
and connection line.
Check domestic hot water sensor, plug and
connection line.
Check heat source sensor, plug and
connection line.
Check flow of domestic hot water, heat
exchanger, domestic hot water temperature
and circulation pump.
Check flow of HW, overflows, temperature
and condensation.
Check flow of HW, overflows, temperature
and condensation.
Check flow, switching point for DFS, filter,
air clearance.
Check outside temperature and set value.
Check outside temperature and set value.
Check flow, filter, air clearance, temperature.
Check switching point of the pressostat,
flow on HS side.
Check function and location of the flow and
return sensor.
Check function and location of the flow and
return sensor.
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