IMPORTANT POINTS ON SERVICE OPERATING SAFETY
Please follow these instructions carefully:
Unplug the unit to avoid any danger from electric shock before disassembling the unit for
repair.
If there is any sound of the refrigerant circulating when in operation, avoid touching the
cooling coils.
If you need to perform any welding or soldering, be sure you are in a well ventilated area.
Only a qualified professional should perform any welding on the unit.
When repairing the unit, the specifications listed in this manual must be strictly adhered
to when replacing any components.
When replacing any electrical components they should be factory approved units.
Be sure that any electrical components are properly wired and in place.
FLOW CHART FOR INSPECTING AND REPAIRING THE UNIT
Dehumidifier
doesn't work
Check if drain bucket
water level switch
is broken
Electricity shutdown
Check fuses
on main switch
Can not
dehumidify
Humidity switch
is broken
Check if air filter
is clogged
Humidity switch is set
on continuous operation
Capacitors
are faulty
Compressor
doesn't work
Over load protector
is faulty
Refrigerant
is leaking
Maintain
&
repair system
Supply Nitrogen 15KG/CM2 from low
pressure side and locate the leakage
Use oxygen acetylene and 5% silver
iron to fill cracks and holes
Pump vacuum for at
least 15 minutes
After filling with
refrigerant proceed
to test run
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