J5" Outdoor Unit: Malfunction Of Thermistor (R8T) For Suction Pipe - Daikin RTSQ20PY1 Service Manual

Troubleshooting by Indication on the Remote Controller
J5
4.28 " " Outdoor Unit: Malfunction of Thermistor (R8T) for
Suction Pipe
J5
Remote
Controller
Display
Applicable RTSQ8P~16P (Outdoor Unit), BTSQ20P (Function Unit)
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
∗
265
Defect of thermistor (R8T) for outdoor unit suction pipe
Defect of outdoor unit PCB (A2P)
Defect of thermistor connection
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Connector is
connected to X11A,
of outdoor unit PCB.
(A2P)
YES
Resistance is normal
when measured after
disconnecting the
thermistor (R8T) from
the outdoor unit PCB.
(1.8kΩ to 800kΩ)
YES
Refer to "Thermistor Resistance / Temperature Characteristics" table on P.408.
NO
NO
SiBE31-801_C
Connect the connector and turn on
again.
Replace the thermistor R8T.
Replace the outdoor unit PCB
(A1P).
Troubleshooting