50
CS
SYMPTOMS
LIGHTS ON
PROBABLE CAUSE
POSSIBLE REMEDIES
C
Wrong Sequences in
the phases
connection,
open fuses
Invert two phases, replace fuses
High pressure switch
off, air filter clogged
Clean filter and reset High
pressure switch
High Pressure Switch
off (opened panel, too
low air flow, suction
side obstructed)
Close the panel, clean suction
side, reset high pressure switch
Unit doesn’t start,
and red alarm led
is ON
Only red Alarm
led
Low pressure switch
off caused by low
refrigerant charge
(automatic reset)
Verify if leachages, charge the
system