Daikin SkyAir RZQ200 · 250C7Y1B Service Manual page 155

Diagnosis by Remote Controller
Troubleshooting
144
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
The
temperature
YES
of the radiator fin
increased up
to 93˚C.
NO
Turn the power off to
measure the resistance
value of the radiator fin
thermister.
Is the resistance
NO
value of the thermister
normal?
YES
Plug and unplug the
connector for the fin
thermister (X111A) to fix
correctly.
Supply
power and start
YES
operation to check if the
malfunction occurs
again.
NO
SiBE26-701
Defective radiation of the
power unit
·
The air-intake is closed.
·
Dirt of the radiator fin
·
The outdoor temperature
is high.
Replace the thermister.
Replace the inverter
PC board (A3P).
Continue operation
•
There is a possibility of
high temperature of the
radiator fin caused by
any field factors. Check
the following items.
·
Dirt of the radiator fin
·
The flow of the air is
blocked (due to any dirt
or foreign substances).
·
Fan propeller is damaged
·
The outdoor temperature
is too high.
Troubleshooting