DECTRON
COMPRESSOR X
OVERLOAD,
where “X” is a place-
holder. Your display will
actually show a number
associated with a partic-
ular refrigeration circuit.
Applied voltage out of tolerance
or out of balance
• A qualified person should be sure that the
average applied voltage is within ±10% of the
nameplate value and that the individual phase
voltages are within ±1% of the average voltage
(See NEMA MG-1). Reset overload.
COMPRESSOR X
PUMPDOWN TOO
LONG,
where “X” is a place-
holder. Your display will
actually show a number
associated with a partic-
ular refrigeration circuit.
Leaking liquid line solenoid valve
• Consult Dectron or a Dectron-certified
technician.
Leaking hot gas bypass valve(s)
shutoff solenoid valve(s) (where
so equipped)
• Consult Dectron or a Dectron-certified
technician.
Room temperature too high
• Be sure that the room temperature set point
is near the value specified on the unit
nameplate. Reset overload.
Evaporator bypass damper
closed when room is above 78°F
and 40%rh.
• Be sure evaporator-bypass damper is fully
open when the room temperature is above 78°F
and the room relative humidity is above 40%.
• Manual dampers should be locked in the
open position when room is above 78°F and
40%rh. Automatic dampers have a motorized
actuator to open the damper when the
temperature of the air leaving the evaporator is
above 50°F. Reset overload.
Room humidity too high
• Be sure that the room humidity set point is
near the value specified on the unit nameplate.
Reset overload.
Defective compressor overload
device
• Compare trip current to maximum current
specified on unit nameplate. A qualified person
should adjust or replace the overload as
necessary.
• Be sure that the space heater is responding
to signals from the DRY-O-TRON®. Reset
overload.
ALARM POSSIBLE CAUSES CHECKS & CORRECTIONS
Dectron, Inc. March 2012
Owner’s Manual
DSH/DSV/RSH/DBH/RBH Series Dehumidifier
Data subject to change without notice.
289
Alarms Troubleshooting Service
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