Service manual

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(V2811)
Resistance check of
the radiator fin
thermistor
Defect of power unit radiation.
• Intake port is clogged
• Radiator fin is dirty
• Outdoor temperature is high
NO
Replace the thermistor.
YES
Abnormal
Is reset possible?
Reset and operate.
Normal
Replace the inverter PC board
NO
YES
Temperature of the
radiator fin rises. Actuates
at min. 89 °C
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.