22
Problem
Probable Cause
Remedy
Low air pressure
downstream due to
continuous air flow
through the moisture drain
line.
Failed or short circuited
timer on drain.
Replace timer drain.
Failed drain solenoid.
Replace timer drain.
Solenoid valve stuck open.
Reference the “timer drain stuck open”
troubleshooting section below.
Noise or vibration coming
from refrigerated air dryer
system.
System dropped during
shipping causing
compressor mounting to
loosen.
Check all mounting bolts on compressor and
tighten.
Cabinet panels or support
beams loosened during
shipping.
Check all screws and bolts on dryer system and
tighten.
Loose mounting bolts,
bent fan blade or worn
bearings on condenser fan
motor.
Tighten bolts, straighten or replace fan blade or
replace motor.
Noise coming from
refrigeration compressor
due to liquid refrigerant
in compressor - caused
by shipping or moving
of dryer.
Let dryer system sit for six hours to allow
refrigerant to settle out of compressor and to
allow crankcase heater to warm compressor.
Timer drain stuck open.
Failed or dirty timer drain.
If power is off and the air stops leaking, replace
the timer drain. If power is off and air continues
leaking, clean the timer drain.
Troubleshooting Table, continued
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...
