Malfunction Of Discharge Pipe Thermistor (R3T) - Daikin Super Multi Plus D-Series Service Manual

Troubleshooting for Outdoor Unit
7.9

Malfunction of Discharge Pipe Thermistor (R3T)

J3
Remote
Controller
Display
Applicable
AII outdoor unit models
Models
Method of Malfunction is detected from the temperature detected by discharge pipe temperature
thermistor.
Malfunction
Detection
Malfunction
When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected.
Decision
Conditions
Supposed
Causes
Troubleshooting
∗ Refer to thermistor resistance / temperature characteristics table on P326.
302
Defect of thermistor (R3T) for outdoor unit discharge 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
R3T from the outdoor
unit PCB.
(3.5kΩ~
400kΩ)
YES
NO
NO
SiEBE18-526
Connect the thermistor and turn
on again.
Replace the thermistor (R3T)
Replace outdoor unit PCB A1P.
Troubleshooting
(Q0429)