Troubleshooting (Inverter)
5.8
Outdoor Unit:
P4
Remote Controller
Display
„ Defect of radiator fin temperature sensor
Supposed Causes
„ Defect of inverter unit
Troubleshooting
542
Malfunction of Inverter Radiating Fin Temperature Rise Sensor
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Measure the resistance of
radiation fin thermistor.
Is the resistance
of thermistor correct?
YES
Is the resetting possible?
YES
NO
NO
Troubleshooting UM Combination "MA1R Series" Using R-407C
PACD011001C2
Replace radiation fin thermistor.
Replace inverter PC board.
After resetting, restart.
(VF070)