Daikin ECORICH EHU2504 - 13.2 Warning Causes and Corrective Actions

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64
PIM00504
13.2 Warning Causes and Corrective Actions
Warning
Code
Name Cause Corrective Action
L44
Motor abnormal
temperature warning
The motor temperature
exceeded the stipulated
value of 83°C for 10
seconds or longer.
The motor cooling fan has
stopped.
• Replace the fuse for the fan.
• Replace the cooling fan.
• Replace the controller.
• Replace the fan harness.
The radiator is clogged.
• Clean or replace the radiator.
The motor rotation speed
has risen.
• Check if the amount of oil
leaking from the circuit at the
main machine has increased.
• Review the setting of the high-
pressure safety valve.
• Replace the motor pump.
The ambient temperature
is too high.
• Install the unit at a location
where the ambient temperature
is within the stipulation.
• Install the unit in a location with
good ventilation.
L45
Abnormal temperature
at radiation fin.
The radiating fin
temperature exceeded
the stipulated value of
108°C for 10 seconds or
longer.
The cooling fan has
stopped.
• Replace the fuse for the fan.
• Replace the cooling fan.
• Replace the controller.
The radiator is clogged.
• Clean or replace the radiator.
The motor rotation speed
has risen.
• Check if the amount of oil
leaking from the circuit at the
main machine has increased.
• Review the setting of the high-
pressure safety valve.
• Replace the motor pump.
The ambient temperature
is too high.
• Install the unit at a location
where the ambient temperature
is within the stipulation.
• Install the unit in a location with
good ventilation.
L48
Abnormal temperature
at PCB
The PCB temperature
exceeded the stipulated
value of 68°C for 10
seconds or longer.
The cooling fan has
stopped.
• Replace the fuse for the fan.
• Replace the cooling fan.
• Replace the controller.
The radiator is clogged.
• Clean or replace the radiator.
The motor speed has
risen.
• Check if the amount of oil
leaking from the circuit at the
main machine has increased.
• Review the setting of the high-
pressure safety valve.
• Replace the motor pump.
The ambient temperature
is too high.
• Install the unit at a location
where the ambient temperature
is within the stipulation.
• Install the unit at a location with
good ventilation.