(R6T), (R9T) Or (R14T) - Daikin VRV III REYQ8PY1 Service Manual

Troubleshooting by Indication on the Remote Controller
J7
3.30 " " Outdoor Unit:

(R6T), (R9T) or (R14T)

J7
Remote
Controller
Display
Applicable REYQ8P~48P
Models
Method of Malfunction is detected according to the temperature detected by liquid pipe thermistor.
Malfunction
Detection
Malfunction When the liquid pipe thermistor is short circuited or open.
Decision
Conditions
Supposed
Causes
Troubleshooting
∗
276
Malfunction of Liquid Pipe Thermistor 1
Faulty liquid pipe thermistor 1 (R6T), (R9T) or (R14T)
Faulty outdoor unit PC board
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 thermistor is
abnormal using outdoor unit
"monitor mode".
(Refer to P226~227)
Is
the connector
for liquid pipe
thermistor connected to
X30A on outdoor
unit PC board
(A1P)?
YES
Is the
resistance
measured after
removing the thermistor
(R6T) (R9T) or (R14T) from
outdoor unit PC board
normal? (1.8kΩ
to 800kΩ)
YES
Refer to "Thermistor Resistance / Temperature Characteristics" table on P417.
NO
NO
Si37-701
Connect the connector and
operate unit again.
Replace thermistor (R6T) (R9T) or
(R14T).
Replace outdoor unit PC board
(A1P).
(V3075)
Troubleshooting