J9" Outdoor Unit: Malfunction Of Subcooling Heat; Exchanger Gas Pipe Thermistor (R6T) - Daikin VRV III-S RXYMQ6PV4A Service Manual

Troubleshooting by Indication on the Remote Controller
3.27 "J9" Outdoor Unit:

Exchanger Gas Pipe Thermistor (R6T)

J9
Remote
Controller
Display
Applicable RXYMQ6P
Models
Method of Malfunction is detected according to the temperature detected by subcooling heat exchanger
gas pipe thermistor.
Malfunction
Detection
Malfunction When the subcooling heat exchanger gas pipe thermistor is short circuited or open.
Decision
Conditions
Supposed
Causes
Troubleshooting
∗
160
Malfunction of Subcooling Heat
Faulty subcooling heat exchanger gas pipe thermistor (R6T)
Faulty outdoor 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 subcooling heat
exchanger gas pipe
thermistor connected to
outdoor unit
PC board
(A1P)?
YES
Is the
resistance
measured after
removing the thermistor
(R6T) from outdoor unit PC
board normal?
(3.5 kΩ to
360 kΩ)
YES
Refer to "Thermistor Resistance / Temperature Characteristics" table on P229.
NO
NO
SiME34-608
Connect connector and operate
unit again.
Replace thermistor (R6T).
Replace outdoor unit PC board
(A1P).
(V3075)
Troubleshooting