Fan Doesn't Run During Air Supply - Gree ETAC2-07HC230VA-A Service Manual

Service Manual
Air conditioning unit
is running but there
is no cooling effect
(or no heating effect)
Fan doesn't run
during air supply
The compressor is not
running (controller
with output)
Installation and Maintenance
Insufficiency or leakage of refrigerant
Blockage in cooling system
Excess refrigerant
Low efficiency of compressor itself
Condensate can not be smoothly
discharged
During heating,electric heater does
not work
Outdoor temperature is too high
If cooling (heating) load is proper
The room is not properly sealed and there is
frequent passage of personnel, or when
cooling, there isheating device in the room.
The voltage is not stale
Wrong wire connection
Damage of fan capacitor
The motor winding is of broken circuit or short
circuit or the built in temperature limiter device
in open circuit due to over heat.
Malfunction of controller
Breakage of compressor capacitor or wrong
wire connection
The motor of compressor is damaged.
The compressor is jammed or blocked.
Check leakage,carryout vacuum-pumping after
repairing leakageand chargerefrigerant according
to requirements.
Observe the condensation condition of evaporator
orthe reading of high pressure meter to judge if
thesystem is blocked; deal with the system accordingly
Charge excess refrigerant in the system
Replace it with a new compressor
Clear the obstacle
1.Connecting wire is loose 2.Fuse is off
3.Thermostator is broken 4.Electric heater is
broken 5.Correct wire connection or replace
broken parts
It is available to install a shade guarding against
sun and rain..If the maximum cooling capacity
still could not ,replace the unit.
Check the forecasted load of cooling
(heating).
Keep a proper sealing for the room and it is
recommended not to use electric appliance with
too much heating when cooling.
Check the reason and correct it.
Check for the circuit with the circuit diagram
Change fan capacitor of same model and
specification
Replace the failed components.
Replace the controller
Change capacitor. And connect the circuit
diagram correctly
Check with a multimeter if the enclosed motor
windings of compressor is with short or broken circuit
or earthing.If so,it is needed to replace it with
the same type and specifications.
Knock the compressor housing with a rubber bar
or with a hammer padding with a wood, the compressor
might be shocked and run. If not, change the
compressor.
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