DAB evoplus - Page 38

ENGLISH
GB
36
e32-e35
Critical
overhea-
ting of
electronic
parts
- Switch off system power.
- Wait for the warning lights on the control panel
to go off.
- Check that the system ventilation ducts are
not blocked and that the environment tempe-
rature of the premises is correct.
e43-e45;
e54
Sensor
signal
absent
- Check sensor connection.
- If the sensor is faulty, replace it.
e39-e40
Protection
against
overcurrent
- Check that the circulator turns freely.
- Check that any antifreeze added does not
exceed the maximum percentage of 30%.
e21-e30
Voltage
Error
- Switch off system power.
- Wait for the warning lights on the control panel
to go off, then power the system again.
- Check that the mains voltage is correct, if ne-
cessary reset it at the plate values.
e31
Twin com-
munication
absent
- Check that the twin communication cable is
intact.
- Check that both circulators are powered.
e42
Dry opera-
tion
- Put the system under pressure.
e56
Motor
excess tem-
perature
- Switch off system power.
- Wait for the motor to cool down.
- Power the system again.
e57 ; e58
f < 100 Hz ;
f > 5 kHz
Check that the PWM external signal is operating
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