Daitsu DS-18UIAK Manual Del Usuario página 39

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 return 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.
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Troubleshooting
In HEAT mode, when the temperature of indoor
heat exchanger is very low, air flow is stopped
in order to prevent cold air. (Within 2 minutes)
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 3-12 minutes.
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 condensate
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 properly.
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 connected
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 motor or the indoor board if
disabled.
Stop operation and cut off the
power supply.