Gree GWHN09AANK3A1A, User Manual

Page: 59 / 62

Artful
Improper set of temperature
If cooling (heating) load is
proper
Adjust set temperature
Check the forecasted load of cooling (heating)
Malfunction of
r e f r i g e r a n t
flow
The refrigerant has leakage or is
insufficient
Check and fill the leakage, then
vacuumize it and supplement the re-
frigerant as required
Leakage between the high pres-
sure and the low pressure in-
side the compressor
Replace the compressor
Local block of capillary Replace the capillary
Blockage of cooling system
Judge whether the system is blocked by
observing the condensation of evapora-
tor and the pressure value of the high
pressure manometer and take measures
to deal with the system.
Poor thermal insulation of connecting
pipe of indoor and outdoor unit
Ensure that both thick pipe and thin pipe are insulated
well. The exposed part of the connector and copper pipe
must be insulated as well.
Heat exchanger of outdoor unit
is blocked
Clean the dust accumulated on the
surface of the heat exchanger
Air filters are blocked
Clean the filter
Fan speed is set too slow
Set the fan speed to high or medium
speed
Fan speed turns low
Damage of capacitor
Damage of motor
Replace the capacitor
Replace the motor
Improper installation location
for outdoor unit
Outdoor unit should be installed in a
place with well ventilation
Outdoor temperature is too high
Indoor sealability is inadequate; too many
people go in and out frequently; there is
heating unit in the room.
Maintain a certain degree of indoor sealability. Try not to
use appliance with high amount of heat.
Flashing or awning can be installed appropriately. If the
max. cooling capacity cannot be satisfied, replacement of
the air conditioner is recommended.
Air circulation
is insufficient
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