PROBLEM
FAN: IT DOES NOT START, IT SWITCHES ON AND OFF
Switch or contactor faulty, break in the auxiliary circuit:
Circuit breaker protection activated:
Condensation control not working:
THE UNIT DOES NOT CARRY OUT DEFROSTING (COILS ICED) – in winter mode
4-way valve damaged:
Pressure transducer faulty:
Section II :: Installation and maintenance
RECOMMENDED ACTION
check and replace if necessary.
check for short-circuits, replace the motor.
1 check functioning of board and replace if necessary.
2 check pressure transducer.
check and replace if necessary.
check and replace if necessary.
105
EN