Gree GK-H03NH3AS - 8 Troubleshooting

Rooftop Packaged
19
(4) witch on power supply and press the ON/OFF button to start operation.
8 Troubleshooting
If your air-conditioning unit suffers from abnormal operation or failure, please
first check the following points before repair.
Failure
Possible cause
Solution
The unit
can not be
stared.
The power supply does not connect
or improper phase sequence.
Connect the power
supply or change two
random phase.
Electrical leakage of air-conditioning
unit causes tripping of leakage
switch.
Contact the nearest
service center.
The voltage is too low.
Contact the dealer.
The control loop has failure.
Contact the nearest
service center.
The unit
operates
for a while
and then
stops.
Air outlet port or intake port of the
unit is blocked.
Move the obstacles.
There is obstacle in front of the
condenser.
Move the obstacles.
The control loop is abnormal.
Contact the nearest
service center.
Poor
cooling
effect.
Air filter is dirty.
Clean air filter.
Air outlet port or intake port of indoor
unit or outdoor unit is blocked.
Move the obstacles.
Too many persons or a heat source
in the Room.
If possible, clear heat
sources.
Doors or windows are open.
Close windows and
doors.
Refrigerant leakage.
Contact the nearest
service center.
Note: After carrying out the check of the above items and taking relevant
measures to solve the problems found but the air-conditioning unit still does not
function well, please stop the operation of the unit immediately and contact the
nearest service center. Only ask professional serviceman to check and repair the
unit.