Troubleshooting - Sullair INT075 Manuel D'utilisation

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6

Troubleshooting

FAULT
CAUSE
and
CURE
no
High current
consumption or
Compressor
compressor pro-
noisy
tector tripped
Compressor Condenser
yes Clean
components dirty or
condenser
deteriorated obstructed
yes no
Compressor
Repair or
yes
winding
replace
with partial
compressor
loss of
insulation
no
High
dew point
Excessive thermal load
(air flow, inlet temperature)
no
Fan
yes
Replace
pressure switch
pressure switch
(PV) not set
no
Low No
yes yes
current refrigerant.
absorption Recharge
no
Request external assistance
Alarm signalling
High
temperature pressure switch
thermostat (ST)
activated
Cooling
Decrease
yes yes
air
cooling air
high
temperature
temperature
no
Decrease
yes yes
compressed
thermal load
air quantity
(inlet air flow,
temperature
temperature)
no
Condenser
yes
yes Clean
dirty or
condenser
obstructed
no
Low
Replace yes
does not turn
current
pressure switch
(PV pressure
absorption
no
yes
Replace
fan
4
INT075 ---500
High
(HP)
activated
Cooling
air
high
temperature
no
Excessive
no
Condenser
dirty or
obstructed
no
Fan
switch fault)
no
Fan
fault
no