EF EVO 45 - Page 88

MANUAL Alarm index
EVO
45
Fault message Fault cause Remedy
12/15
Alarm
2
High pressure alarm refrigerant
circuit!
-loose connection.
-condenser fins are dirty.
-one or more fans are defective.
-ambient temperature is too high.
-check if terminals are tight.
-clean condenser fins.
-check fans for correct operation, if necessary replace them.
Alarm
3
High pressure safety switch refrigerant
circuit has triggered!
-loose connection.
-condenser fins are dirty.
-one or more fans are defective.
-ambient temperature is too high.
-check if terminals are tight.
-clean condenser fins.
-check fans for correct operation, if necessary replace them.
Alarm
17
Over temperature consumer circuit!
-cooling power not sufficient.
-cooling load to high
-not enough cooling liquid
-expansion valve defective
-reduce cooling load
-contact ef cooling After Sales
Alarm
20
Flow alarm consumer circuit!
-loose connection.
-flow switch is defective
-evaporator pump has a problem.
-check if terminals are tight.
-locate loose contact and solve it.
-replace defective flow switch.
-check evaporator pump for correct function
Alarm
34.1
Winding protection condenser fan 1 has
triggered!
-voltage interruption on one or more phases.
-current consumption of the fan is too high.
-set point of the circuit breaker is too low.
-fan is defective.
-fan blocked.
-check if on all three phases 400V is present.
-check current consumption of the compressor and com-
pare it with the value in the wiring diagram.
-check the set point of the circuit breaker and compare is
with the value in the wiring diagram.
-check if all terminals are tight
-replace defective fan.