Spheros CC 145, Руководство по эксплуатации

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CC 145
23
AC does not cool down and
the compressor remains on Lack of refrigerant Check for leakage, fill to correct amount
Air or other gas in the system Draw a vacuum (min. 3 hours below 10 mbar) replace filter drier, fill to correct
amount
Dirty or defective expansion valve Replace the valve
Dirty evaporator coil Clean the coil
Air filter dirty Clean or replace filter
It cools down too much and
the compressor does not
turn off Incorrect temperature selection Adjust the temperature on the control panel
Temperature sensor badly placed Place the sensor appropriately
High discharge pressure Excess refrigerant in the system Drain and capture refrigerant, fill to correct amount
Refrigerant flow obstructed Check for restriction (compressor valve partially closed, expansion valve blocked,
filter drier blocked, etc.)
Condenser motor is stopped Refer to symptom "Condenser motor is stopped“
Dirty condenser coil Clean and wash
Low suction pressure Lack of refrigerant Check for leakage, fill to correct amount
Air return temperature is too low Place the temperature sensor at the most appropriate position
Dirty or defective expansion valve Replace the valve
Evaporator motor is stopped Replace motor
Restriction in the system Eliminate
Loaded air filter Clean or replace filter
Dirty evaporator coil Clean coil
Symptoms Probable cause Solution
Fig. 6 Failure Diagnosis Table