Genvex VANVEX R + Manual page 41

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