Troubleshooting - Sullair SR-serie Benutzerhandbuch

8 Trouble shooting
The following diagram lists the various problems which may occur during the dryer's
service life. In the case of serious difficulties however, contact a refrigerant special-
ist.
For alarms and warnings refer also to para. 4.4.
NOTE: Always bypass the dryer when it is out of service.
high dew
FAULT
point
Compressed
air pressure
No
too low
Yes
CAUSE
Increase air
pressure
Fan does
not work
and
Yes
Repair
fan
REMEDY
Code: 02250145- - 604 SR- - 250 --- SR- - 3000
Thermostat ST
High air
or overload
outlet
protector PI
temperature
tripped
Ambient
Condenser dirty
temperature
(cooling
No
over 122˚F
air outlet
(50˚C)
too hot)
No
Yes
High
Clean refrigerant
condenser discharge
Yes
pressure
No
No
Excessive
compressed air
thermal load
quantity or
(compressor
Yes
head too hot)
temperature
No
Lack of
Low current
refrigerant:
consumption
Yes
Recharge
No
Compressor
noisy
Reduce
Clean
temperature
condenser
Yes
Repair
fan
Compressor
Reduce
components
No
perished
air
Yes
Repair or
replace com-
Yes
pressor
Excessive
Ice
current
formation
consumption
Condenser dirty Low
(cooling evaporation
air outlet pressure
Yes
too hot)
Yes
No
Fan does
not work
Yes
No
Bypass air by keep-
ing air inlet open.
Manually open con-
Compressor
densate drain. Re-
winding insulation
pair before restarting
partially perished
(Check hot gas valve
(compressor
setting)
too hot)
No
English
High refriger-
ant discharge
pressure
Fan pressure
Calibrate or
switch (PV) in-
replace
Yes correctly cali-
valve
brated
No
Clean
Condenser
condenser
dirty
Yes
No
Replace Fan does
not work
fan
Yes
No
Seek exter-
nal assis-
tance
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