41
7.7.3. Alarms
Alarm
Meaning
Possible reasons
Possible solutions
Er1, Er2,
Er3, Er4,
Er5
Temperature
sensors out
of range
The temperature sensor T1, T2, T3,
T4* or T5* is defective or not connect-
ed to the PCB
Check that the sensor is
connected to the PCB
Substitute the temperature
sensor
Err HP
High
pressure
switch
High pressure in the cooling system
Reduce the water
temperature setpoint
Reduce the fan maximum
speed in the installer menu
High pressure switch BP1 is defective
or not connected to the PCB
Substitute component
Er 7 - Err
Evap /
Er9 - Err
H Evap
High
evaporator
temperature
Wrong position of the temperature
sensor
Check that T2 is positioned in
the evaporator
Leakage of refrigerant
Fix leakages and charge
refrigerant
Err C
Evap
Low
evaporation
temperature
Mal-functioning fan
Make sure that the fan is
connected to the PCB or
substitute the component
Low air flow
Increase the minimum fan
speed in the installer menu
Low air inlet temperature T1
Increase the minimum air
temperature in the installer
menu
Er10 -
Filter
Change filter Substitute the air filter
Summary of Contents for VANVEX R +
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