ABATEMENT AQUATRAP AT100S Manual de instrucciones - Página 10

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TROUBLESHOOTING GUIDE – LGR COMMERCIAL DEHUMIDIFIER
Warning: Some instructions contained herein are for use by qualified personnel only.
Troubleshooting may involve fire, shock, explosion, or mechanical injury hazards that can cause
personal injury or death.
SYMPTOM
Unit initiates defrost
cycle when air being
humidified is very warm.
Compressor Short
Cycles
Compressor Will Not
Run
Unit Trips Fuse / Circuit
Breaker
Unit Rattles or is Noisy
Compressor and
Motorized Impeller run,
but there is no water
being pumped from unit
Water Drips from Unit
*This troubleshooting guide is intended for use by qualified service personnel.
CAUSE
Restricted airflow through unit.
Air is very dry.
Low Refrigerant Charge
Low voltage.
Blocked Air Outlet.
Outlet Ducting too long or restricted.
Blower operating intermittently, blower rotating slowly,
or not at all.
Faulty or incorrect compressor overload.
Unit partially or fully unplugged
Fuse or circuit breaker tripped.
Defective compressor relay or electronic board.
No power to electronic board.
Kinked or plugged drain hose.
Drain hose connection not fully inserted in drain fitting.
Broken, shorted, loose, or incorrect wiring.
Defective compressor capacitor or external overload
Low voltage or no voltage to compressor.
Compressor windings open.
Seized compressor.
Shorted or incorrect wiring.
Shorted capacitor.
Compressor short cycling.
Fuse or breaker setting too low.
Broken, shorted, loose, wiring, or miswired.
Low voltage or no voltage.
Seized or seizing compressor.
Defective fan relay.
Defective compressor.
Overcharged refrigerant quantity.
Refrigerant lines contacting each other, or other parts
Loose impeller or loose compressor mounts.
Humming reversing valve solenoid.
Air is too dry to remove any more water
Low refrigerant charge
Excessive refrigerant charge
Male hose fitting not fully inserted in Female fitting
receptacle.
Drain pan hose not inserted into pump reservoir.
Reversing valve stuck in defrost position
Refrigeration tubing insulation is missing, or damaged.
AT100S unit was not manually purged prior to
relocating.
Check for dirty air filter. Replace as
necessary. Also check for dirty air-to-air-
heat exchanger, evaporator, or
condenser. Clean as necessary.
It is normal for the unit to initiate defrost
cycles when the air is very dry because
the unit must operate at a very low dew
point to extract moisture.
Contact qualified service personnel.
Voltage should be within nameplate limits.
Check for debris lodged in the air
discharge screen. Clean as necessary.
Refer to maximum duct length/minimum
diameter and maximum pressure
parameters in the Instruction Manual.
There should be a generous volume of air
being discharged through the air outlet. If
not, contact qualified service personnel.
Contact qualified service personnel.
Push power plug in fully.
Replace or reset as necessary.
Contact qualified service personnel.
Contact qualified service personnel.
Inspect and correct.
Inspect and correct.
Contact qualified service personnel.
Contact qualified service personnel..
Voltage should be within nameplate limits.
Contact qualified service personnel.
Contact qualified service personnel.
Contact qualified service personnel.
Contact qualified service personnel.
See "Compressor Short Cycles"
Check nameplate fuse size.
Contact qualified service personnel.
Voltage should be within nameplate limits.
Contact qualified service personnel.
Contact qualified service personnel.
Contact qualified service personnel.
Contact qualified service personnel.
Contact qualified service personnel.
Contact qualified service personnel.
Contact qualified service personnel.
Move unit or ducting to an alternate
location or increase the evaporation rate
out of the building materials using fans.
Contact qualified service personnel.
Contact qualified service personnel.
Fully insert to ensure internal shut-off
valve opens.
Re-insert hose as far into pump reservoir
as possible.
Contact qualified service personnel.
Contact qualified service personnel.
Leave unit plugged in for 15 minutes after
final shut-down. After 15 minutes (or
more) press PURGE button to drain pump
reservoir completely before moving unit.
10 of 10
CHECK / CORRECTION