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
Summary of Contents for DHT-100
Page 12: ...12 Typical Installation Aircel DHT Series Models 20 125 Typical Installation...
Page 33: ...33 Service Notes Date Service Performed Notes High Inlet Temperature Refrigerated Air Dryer...
Page 34: ...34 Service Notes continued Date Service Performed Notes Aircel DHT Series Models 20 125...
