26
Poor cooling or heating phenomena.
Poor cooling
(heating)
performance
Is the temperature
set properly?
Change the set temperature.
The heating (cooling)
load is too large.
Reduce heat (cool) source or
change the air conditioner
with large power.
Refrigerant
flow is not
enough
Refrigerant is not enough.
Filling it
Capillary tube is blocked.
Replace it.
Compressor is in error.
Replace it.
Service valve is not open
completely.
Open
it
completely.
Air circulating
capacity
is
not enough.
The air filter is blocked.
Clean it.
4-way reversing valve fails.
Replace it
Fan running speed
is at “low”.
Change it to “high’
or “medium”.
Connection between indoor
and outdoor units is in poor
thermal-insulated.
Wide and narrow tubes
are thermal-insulated
separately.
Cooling air -flow
4-way reversing valve is defective.
Replace it
Cooling airflow
protector is no
use
.
The pause indicator is on.
Replace
the
electric
controller of indoor unit.
Temperature
sensor
of
indoor coil is defective.
Replace the sensor.
