GSRN10-2250A-SM
Page 8 of 10
TROUBLESHOOTING
Sec Symptom
Possible Cause(s)
Corrective Action
A
Water downstream of
dryer.
1. Residual free moisture
remaining in downstream
piping
Drain low spots in system and purge with dry
air
2. Air By-pass system is
open
Verify valve positions and correct valve
positions
3. Ambient temperature
surrounding downstream
piping is below the dryer’s
dewpoint.
Insulate and/or heat trace piping exposed to
low ambient temperatures or dry air to a lower
dewpoint.
4. Free water (liquid) is
entering the dryer
Dryers are designed to handle saturated air
not condensed liquid. Install a separator and
coalescing filter upstream of dryer.
5. Condensate is not being
drained
See section B
6. Dryer is overloaded
resulting in high dewpoint
See capacity charts to determine correct load
7. Refrigeration system is not
functioning.
See section E
8. Suction pressure not in
operating range
Contact your local distributor to perform
adjustments.
B
Drain System Failure
with no condensate
discharge on test
initiation.
1. Drain strainer is clogged
Depressurize dryer and replace or clean drain
strainer.
2. Solenoid valve or
electronic timer failure
Replace drain solenoid and or timer assembly
C
Drain System Failure
with continuous
condensate or air
discharge.
1. Solenoid valve diaphragm
rupture or orifice path
blocked open
Clean or replace internal diaphragm
assembly.
D
High pressure drop
across dryer
1. Inlet flow exceeds
maximum capacity
Check inlet flow vs. rated capacity
2. Freezing of moisture in
evaporator is restricting
inlet air flow
If refrigerant suction pressure is out of
standard operating range, contact your local
distributor to perform adjustments.
E
Refrigeration System Fault
E1
Power on indicator
does not illuminate
1. Power failure, Line fuses
blown, or disconnect
open.
Have an electrician check electrical feed and
connection integrity.
E2
Refrigeration
compressor cycles on
and off
1. Ambient Conditions are
above or below minimum
or maximum ranges.
Verify range and rectify ambient
conditions.
2. Air-Cooled Units,
Dirty condenser
Clean condenser as per required
maintenance.
3. Water-Cooled Units,
High fluid temperature or
low fluid flow.
Check fluid temperature, bring in
range and check for free fluid flow
through condenser. If problem
persists contact your local distributor
to perform adjustments.
