Toyotomi GAN-A28IVL User Manual page 18

Troubleshooting
Phenomenon
Indoor unit can not blow air:
Moisture on air outlet :
C5:Malfunction of connector jumper:
F1: Malfunction of indoor ambient temperature
sensor
F2: Malfunction of evaporator temperature
sensor
Defrosting or oil teturn mode
H6: Indoor fan block
If any one of the following situations occurs, immediately stop all operations,
cut off the power supply, and contact the authorized personnel
• There is harsh sound during operation.
• Strong odours are emitted during operation.
• Water is leaking from the unit.
• The air switch or protection switch often trips.
• Water or other liquid is splashed into the unit.
• Power cord and power plug is overheating.
Troubleshooting
• In HEAT mode, when the temperature of in-
door heat exchanger is very low, air fl ow is
stopped in order to prevent cold air. (Within
2minutes)
• In HEAT mode, when the outdoor temperature
is low or humidity is high, frost will be formed
on the outdoor heat exchanger. The unit will
defrost automatically and indoor unit will stop
blowing air for 3-12minutes.
• During defrosting operation, water or vapour
may be emitted.
• In DRY mode, the indoor fan will stop blowing
air for 3-12 minutes in order to avoid condens-
ing water being vaporised again.
• If the unit operates at high humidity for a long
time, moisture will be generated on the air
outlet grill and then drip off .
• Check if the connector jumper contacts prop-
erly. If the PCB is to be replaced, please take off
the old for the new PCB.
• Check if indoor room temperature sensor is
connected properly.
• Check if the evaporator temperature is con-
nected properly.
• It is normal.
• The indicating lamp in heat mode will wink
0.5s and light 10s.
• Check if the terminal of the indoor motor is
connected properly.
• Replace the fan motro or the inddor board if
disabled.
Stop operation
and cut off the power supply.
18
GB