Troubleshooting by Indication on the Remote Controller
" Outdoor Unit: Malfunction of Discharge Pipe
Malfunction is detected from the temperature detected by discharge pipe temperature
When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected.
The alarm indicator is displayed when the fan is being used also.
Defect of thermistor (R3T) for outdoor unit discharge pipe
Defect of outdoor unit PC board (A1P)
Defect of thermistor connection
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Confirm which discharge
thermistor is abnormal using
outdoor unit "monitor mode".
(Refer to page 134 and 135)
is connected to X29A
of outdoor unit
is normal when
disconnecting the thermistor
R3T from the outdoor unit
Refer to "Thermistor Resistance / Temperature Characteristics" table on P.248.
Connect the connector and turn on
Replace the thermistor (R3T).
Replace outdoor unit PC board