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value and the heat pump will restart
automatically.
If the room temperature is constantly
under the set switch-off value, a different
installation room should be selected.
A3
The inlet air temperature is too high (40°C);
the heat pump is deactivated.
The room should be ventilated so that the
temperature falls below this value and the
heat pump will restart automatically.
If the room temperature is constantly
above this value, a different installation
room should be selected.
9.2
Error Indication
Error
Cause
Solution
E7
Pressure in the system is too high.
Check if there is enough water in the
water heater.
Error is deleted by pressing the + key. If
the error occurs again, call the repair
service.
Alternately
E8
and ¯ ¯
DHW sensor is disconnected.
Check if the sensor is connected. If not,
contact the repair service.
Alternately
E8
and _ _
Malfunction of the DHW sensor.
First, reset the heat pump and check the
connection cable of the sensor. If the error
occurs again, contact the repair service.
Alternately
E9
and ¯ ¯
Evaporation temperature sensor is
disconnected.
Check if the sensor is connected. If not,
contact the repair service.
Alternately
E9
and
_ _
Malfunction of the evaporation temperature
sensor.
First, reset the heat pump and check the
connection cable of the air sensor. If the
error occurs again, contact the repair
service.
Description of malfunction
Cause
Solution
Water is not heated to the
set temperature.
Boiler heating circuit is not closed.
Close the valve of the boiler circuit.
Circulation takes too much heat.
Switch off the circulation pump and close
the valve.
Gas leakage somewhere in the system.
Contact the repair service.
Damaged evaporator due to careless cleaning.
Contact the repair service.
HP is constantly in
operation and does not
switch off.
Insufficient amount of gas in the system.
Contact the repair service.
Circulation takes too much heat.
Switch off the circulation pump and close
the valve.
Uncontrolled heat discharge from the boiler
(hot water consumption is too high).
Check all possible sources of heat
consumption from the boiler.
HP causes too much noise.
The fan is in contact with the housing or the
protective grid.
Contact the repair service.
Compressor malfunction.
Electric heater does not
work.
Regulator displays the water temperature
below the electric heater that is why the
displayed temperature is not correct.
Check if the tap water is hot.
Evaporator freezing.
Insufficient air flow through the evaporator.
Air intake and discharge must be
unobstructed.
Fan malfunction.
Contact the repair service.
Содержание WPA 233 E-LF
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