Troubleshooting - Toyotomi GAN GAG A180IV Service Manual

Improper setting of temperature
Whether cooling (heating) load
is proper
Leakage or shortage of refrigerant
Malfunction of
refrigerant flow
Poor thermal insulation of connecting
pipe of indoor and outdoor unit
Air circulation
is insufficient
Outdoor temperature is too high
Indoor sealability is inadequate; too many
people go in and out frequently; there is
heating unit in the room.
Adjust the set temperature
Check the estimated load of cooling (heating)
Leakage occurs between high and
low pressure inside compressor
Malfunction of four-way valve
Partial blockage of capillary
Blockage of cooling system
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
Air filters are blocked
Fan speed is set too slow
Fan speed turns low
Improper installation location
for outdoor unit
Flashing or awning can be installed appropriately. If the
max. cooling capacity cannot be satisfied, replacement of
the air conditioner is recommended.
Maintain a certain degree of indoor sealability. Try not to
use appliance with high amount of heat.
40
Vacuumize after leakage detection
and leakage repair. Charge refrigerant
according to specification.
Replace the compressor
Replace the four-way valve
Replace the capillary
Use the method of observing condensation
on the evaporator and pressure value of
high pressure manometer to see whether
the system is blocked and carry out
corresponding handling on the system
Clean the dust accumulated on the
surface of the heat exchanger
Clean the filter
Set the fan speed to high or medium
speed
Damage of
Replace
capacitor
capacitor
damaged
Damage of
Replace the motor
motor
Outdoor unit should be installed in a
place with well ventilation
the