J9" Malfunction Of Sub Cooling Heat Exchanger Outlet Thermistor (R5T) - Daikin VRV - WII Service Manual

Troubleshooting by Indication on the Remote Controller
2.25 "J9"
Malfunction of Sub Cooling Heat Exchanger Outlet
Thermistor (R5T)
J9
Remote
Controller
Display
Applicable RWEYQ60, 72, 84MTJU
Models
Method of Malfunction is detected according to the temperature detected by sub cooling heat exchanger
outlet thermistor.
Malfunction
Detection
Malfunction When the sub cooling heat exchanger outlet thermistor is short circuited or open.
Decision
Conditions
Supposed
Causes
Troubleshooting
∗
190
Faulty receiver gas pipe thermistor (R5T)
Faulty outside unit PC board
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is
the connector
for oil equalizing
pipe thermistor
connected to X37A on
outside unit PC
board (A1P)?
YES
Is the
resistance
measured after
removing the thermistor
(R5T) from outside unit PC
board normal?
(3.5 kΩ to
360 kΩ)
YES
2: Refer to thermistor resistance / temperature characteristics table on P278.
NO
NO
SiUS30-604
Connect the connector and operate
unit again.
Replace thermistor (R5T).
Replace outside unit PC board
(A1P).
(V3075)
Troubleshooting