Specifications

20
Problem Probable Cause Remedy
Water downstream
of dryer system or no
discharge from separator/
filter.
Failed or short circuited timer
on drain.
Replacetimerdrain.
Failed drain solenoid. Replacetimerdrain.
Bulk liquid entering the
dryer from upstream.
Check drains on after cooler or air compressor.
Inlet compressed air
temperature to dryer too
high for proper cooling of
compressed air.
Check inlet air temperature and adjust to meet
specifications of dryer system.
InletcompressedairCFM
flow rate too high for dryer
specifications.
Check in inlet air cfm flow rate and adjust to
meet specifications of dryer system.
Leak in the air to air
sideoftheheatexchanger.
Replaceheatexchanger.
Water downstream and
dryer system not working
properly or not working.
Refrigerationcompressor
stopped due to plugged or
dirty condenser coil.
Clean condensing coil and ensure adequate
ventilation of unit.
Refrigerationcompressorshort
cycles and cannot maintain
suction pressure.
Locate leak in refrigeration circuit, repair and
recharge according to specifications.
Low refrigerant. Check for leak in refrigeration circuit, repair and
recharge according to specifications.
Low refrigerant, possible
leak in air to refrigerant
sideofheatexchanger.
Repairorreplaceheatexchangerandrecharge
according to specifications.
Refrigerationcompressor
is overheated.
Turn off dryer and wait 20 - 40 minutes, restart
dryer.
Refrigerationcompressor 
has burned out or
windings have gone
to ground.
Replacecompressor,checkforleakin
refrigeration circuit, repair and recharge
according to specifications.
Troubleshooting Table
AircelDHTSeries-Models20-125