Specifications

HighInletTemperatureRefrigeratedAirDryer
23
Problem Probable Cause Remedy
HighRefrigerationCircuit
HeadPressure
(compressor is overloaded
and gauge is reading out
of recommended pressure
range).
Refrigerationcondenser
coil fouled or dirty or air
flow blocked.
Clean / blow off condensing coil of dirt or
debris from the inside out. Clear area in front of
condensing coil of any items blocking airflow to
coil.
Condenser fan motor not
working properly or faulty.
Check fan motor for proper voltage and amp
draw, repair or replace fan motor.
Defectivefancontrol
switch.
Repairswitchorreplace.
Ambient temperature
too high at refrigeration
dryer location.
Cool ambient temperature around location of
refrigerationdryerdowntoamaximumof100°
F or relocate dryer to a different area with lower
ambient temperature.
Compressed air
temperature entering the
refrigeration dryer is
too high.
Check compressed air inlet temperature to ensure
it is within the operating parameters listed in the
DesignParametersection.Checkaircompressor
after cooler for malfunction.
Faultyheatexchanger,
compressed air leaking
into refrigeration circuit.
Repairorreplaceevaporatororheatexchanger
and recharge with refrigerant.
LowRefrigeration
CircuitHeadPressure
(gauge is reading out of
recommended
pressure range).
Ambient temperature
too low at refrigeration
dryer location.
Increase ambient temperature at refrigeration
dryer location or relocate dryer.
Refrigerationdryer 
circuit low on refrigerant.
Refrigerationcircuitlowonrefrigerant,locate
leak in refrigeration circuit, repair and recharge
according to specifications.
Refrigerationcompressor
not working properly or
faulty.
Check refrigeration compressor for proper
voltage and amp draw, repair or replace
refrigeration compressor.