Teddington CS300 Série Manuel Technique page 59

PROBLEM
C
Fan starts,
compressor does
not start, but red
alarm led is on
LED ON
Red alarm led
ALARM P. led
POWER supply red
POWER supply led,
REQUEST led
ALARM led
POWER supply led,
REQUEST led
ALARM led
POWER supply led,
REQUEST led
ALARM led
Any led
PROBABLE CAUSE
Wrong phases sequence
Pump alarm
High pressure switch not
enabled. Air filter clogged
Low Pressur Switch alarm.
Low refrigerant charge
High pressure switch not
enabled. Open panel, low
air flow, suction side
obstructed, high pressure
switch on
Electronic board or led
Board defective
59
CORRECTIVE ACTION
Invert two phases
Check if pin 1-2 are really
connect
Clean filter and reset high
pressure switch
Charge the system
Close the panel, clear
Suction side, reset high
pressure switch
Replace defective board