Parker 200, User Manual, Page: 7 / 36

200
5
English
7 troubleshooting
FAULT CAUSE
REMEDY
Low dew point
High current absorp-
tion
Compressor noisy
Compressor
components
perished
Condenser dirty or
obstructed
Repair or
replace
compressor
Z
Compressor wind-
ing with partial
loss of insulation
Clean
condenser
Low cooling air
temperature
Fan always
working (PV
pressure switch
fault)
Replace
pressure
switch
Z
Hot gas valve not
calibrated
Calibrate
valve
Z
Increase
cooling air
temperature
High dew point re-
frigeration compressor
operating?
ST thermostat tripped
Cooling air high
temperature
Excessive thermal load
(air fl ow, inlet temperature)
Fan pressure
switch (PV)
not set
Replace
pressure
switch
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 tem-
perature
Clean
condenser
Replace
pressure switch
Z
Replace
fan
Z
HP pressure switch
tripped
Cooling air high
temperature
Excessive thermal
load (inlet air fl ow,
temperature)
Condenser dirty
or obstructed
Fan does
not turn (PV pres-
sure switch fault)
Fan fault
No
No
No
No
No
No
No
No
No No
No
No
No
No
No
No
No
No
No
Yes Yes Yes
Yes Yes Yes
Yes Yes
Yes
Yes
Yes Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes