Malfunction Of Thermistor (R2T) For Suction Pipe - Daikin Super Multi Plus D-Series Service Manual

SiEBE18-526

7.10 Malfunction of Thermistor (R2T) for Suction Pipe

J5
Remote
Controller
Display
Applicable
AII outdoor unit models
Models
Method of Malfunction is detected from the temperature detected by the suction pipe temperature
thermistor.
Malfunction
Detection
Malfunction
When a short circuit or an open circuit in the suction pipe temperature thermistor is detected.
Decision
Conditions
Supposed
Causes
Troubleshooting
∗ Refer to thermistor resistance / temperature characteristics table on P326.
Troubleshooting
Defect of thermistor (R2T) for outdoor unit suction pipe
Defect of outdoor unit PCB (A1P)
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Connector
is connected to outdoor
unit PCB.
(A1P)
YES
Resistance
is normal when
measured after
disconnecting the thermistor
(R2T) from the outdoor
unit PCB.
(3.5kΩ ~
360kΩ)
YES
NO
NO
Troubleshooting for Outdoor Unit
Connect the thermistor and turn
on again.
Replace the thermistor R2T.
Replace outdoor unit PCB A1P.
(Q0430)
303