Daikin E Series Service Manual page 196

SiBE04-624
Troubleshooting
Check No.2
Refer to P.202
Check No.3
Refer to P.203
Check No.5
Refer to P.203
Service Diagnosis
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Turn off the power supply and
turn it on again to get the system
started.
Does the fault
appear again?
NO
Check No.5
Outdoor fan system
check
OK
Radiation fin dirty?
Slightly dirty
Check No.3
Installation condition check
WARNING
To cool down the electric
components, the outdoor unit fan
gets started when the radiation
fin temperature rises above
120 ˚C and stops when the
temperature falls below 113 ˚C.
YES
Check No.2
Thermistor resistance check
· Fin thermistor
Check the radiation fin
temperature
Does the thermistor
meet the specification chart
of thermistor?
YES
Does the temperature
exceed the temperature to
stop operation?
YES
NG
Too dirty
Troubleshooting
NO
Replace the fin thermistor.
NO
Check the power transistor
and fin for looseness. If
they are found to be fit
tightly,replace the PCB or
the power transistor.
Replace fan motor.
Rectify connector and fan
motor lead wire.
Replace the outdoor unit
PCB.
Clean up the radiation fin.
(R6015)
185