Suction Pipe - Daikin VRV III REYQ8PY1B Service Manual

Troubleshooting by Indication on the Remote Controller
J5
3.28 " " Outdoor Unit:
R10T) for Suction Pipe
J5
Remote
Controller
Display
Applicable REYQ8P~48P
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
∗
296
Malfunction of Thermistor (R8T or
Defect of thermistor (R8T or R10T) for outdoor unit suction pipe
Defect of outdoor unit PC board (A1P)
Defect of thermistor connection
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Confirm which discharge
thermistor is abnormal using
outdoor unit "monitor mode".
(Refer to P248~249)
Connector
is connected to
X30A, of outdoor unit
PC board.
(A1P)
YES
Resistance
is normal when
measured after dis-
connecting the thermistor
(R8T or R10T) from the
outdoor unit PC
board. (1.8kΩ to
800kΩ)
YES
Refer to "Thermistor Resistance / Temperature Characteristics" table on P437.
NO
NO
SiBE37-701
Connect the connector and turn on
again.
Replace the thermistor R8T or
R10T.
Replace outdoor unit PC board
(A1P).
(V3073)
Troubleshooting