Parker PSE User Manual

English
12/12
PSE 120-350
8 Troubleshooting
FAULT CAUSE
REMEDY
Clean
condenser
High dew point
refrigeration compressor
operating?
Thermostat tripped
Cooling air high tem-
perature
Excessive thermal load
(air  ow, inlet temperature)
pressure trans-
mitter not set
Replace
pressure
transmitter
Z
Condenser
dirty or ob-
structed
Low current
absorption
No
refrigerant
recharge
Z
Low current
absorption
Request external
assistance
Decrease
cooling air tem-
perature
Decrease
compressed air
quantity tempera-
ture
Clean
condenser
Replace pres-
sure transmitter
Z
Replace fan
Z
HP
Pressure switch tripped
Cooling air high
temperature
Excessive thermal
load (inlet air  ow,
temperature)
Condenser dirty or
obstructed
Fan does
not turn (pressure
transmitter fault)
Fan fault
No
No
No
No
No
No
No
No No
No
No
No
Yes Yes
Yes
Yes
Yes Yes
Yes
Yes
Yes
Yes
Yes
Yes
Lt Low evaporation
temperature alarm
Low dew point alarm.
Low
cooling
air
temperature
Fan
always
working
(pressure trans-
mitter fault)
Replace
pressure
transmitter
Z
Hot gas
valve
not calibrated
Calibrate
valve
Z
Increase
cooling air
temperature
No
No
No
Yes
Yes
Yes
Low
pressure alarm
Low pressure
switch fault
Yes
Replace
pressure
switch
Z
Liquid line
solenoid valve
closed
No
Replace
the coil
Z
Yes
No
High current ab-
sorption
Compressor
noisy
Compressor
components
perished
Condenser dirty or
obstructed
Repair or
replace
compressor
Z
Compressor
winding with
partial loss of
insulation
No
Yes
No
Yes
Yes

Parker PSE Specifications

General

Brand	Parker
Model	PSE
Category	Dryer
Language	English