Error Messages And Troubleshooting - AZURO BP-85HS-A Bedienungsanleitung

7.3

ERROR MESSAGES AND TROUBLESHOOTING

Displayed error message and related
equipment failure
Compressor and blower
PP 1
have stopped
Compressor and blower
PP 2
have stopped.
Heat pump runs without
PP 3
interruption.
Compressor and blower
PP 5
have stopped.
PP 7
PP 7
Compressor and blower
EE 1
have stopped.
Compressor and blower
EE 2
have stopped.
Compressor and blower
EE 3
have stopped.
Equipment cannot be
EE 4
switched ON.
Compressor and blower
EE 5
have stopped.
Compressor and blower
EE 6
have stopped
Equipment cannot be
EE 7
switched on
Control panel does not
EE 8
communicate
Note:
1) A specialized technician of refrigeration equipment shall be contacted to check the system.
IMPORTANT: In case of a necessary intervention into electrical wiring an authorised service shall be contacted.
16
Component
Water temperature Sensor signal wire or supply wire is
sensor broken, or the sensor is defective.
Temperature sensor at Sensor signal wire or supply wire is
compressor discharge broken, or the sensor is defective
Defrosting had been insuffi cient and the
Defrosting system
control system stopped the heat pump.
Ambient air tempera- Sensor signal wire or supply wire is
ture sensor broken, or the sensor is defective
First stage of frost Either ambient temperature, or inlet
rotection water temperature is too low.
Second stage of frost Either ambient temperature, or inlet
protection water temperature is too low.
Maximum./ Minimum
Protection is disconnected or defective
pressure switch
Surplus coolant in the system
Lack of coolant in the system.
Minimum pressure
switch
Coolant leakage from the system.
Flow rate sensor signal wire or supply
Flow rate sensor
wire is broken, or the fl ow rate sensor
Safety witch Action of the safety switch.
Ambient air
Ambient temperature is lower than set.
temperature sensor
The temperature in excess of 105 °C on the
Temperature sensor at
compressor discharge was detected more than
compressor discharge
three times within the period of 24 hours.
Phase protection Incorrect phase connection.
A problem of equipment communication
Communication error
Possible cause
Low water fl ow rate.
Water fl ow rate is low.
is defective.
with the control unit.
Putting it right, other possible
causes and solutions
Check the wires and connections,
replace defective ones. If the failure
persists, replace the sensor.
Check the wires and connections,
replace defective ones. If the failure
persists, replace the sensor.
Increase slightly water fl ow rate through
the heat pump to increase temperature
in the evaporator.
Check the wires and connections,
replace defective ones. If the failure
persists, replace the sensor.
Filtration pump will start operation.
In addition to fi ltration pump also the
heat pump will start operation.
Clean the fi ltration unit and open
fully the bypass.
1)
1)
1)
1)
Clean the fi ltration unit and open fully
the bypass.
Check connections and wires, replace
them or replace the control unit.
Have checked the electrical wiring.
The problem that may be caused by
external conditions. Coolant leakage.
Clogged capillary tube.
Have it checked.
Check the connections of signal cable.