Subcooling Heat Exchanger Gas Pipe Thermistor (R6T) Abnormality - Daikin RMXS-L Series Service Manual

Troubleshooting for Outdoor Unit
7.14 Subcooling Heat Exchanger Gas Pipe Thermistor (R6T)
Abnormality
J9
Error Code
Method of Error The temperature detected by subcooling heat exchanger gas pipe thermistor determines the error.
Detection
Error Decision
When the subcooling heat exchanger gas pipe thermistor is short circuited or open
Conditions
 Disconnection of thermistor
Supposed
 Defective subcooling heat exchanger gas pipe thermistor (R6T)
Causes
 Defective main PCB (A1P)
Troubleshooting
Refer to Thermistor Resistance / Temperature Characteristics table 1 on page 224.
199
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Is the thermistor
NO
ASSY is connected to
X13A on the main PCB
(A1P)?
YES
Is the
resistance is
normal when
measured after NO
disconnecting the
thermistor (R6T)?
(3.5 kΩ ~ 360 kΩ)
YES
SiUS181305E
Connect the thermistor and
turn on again.
Replace the subcooling
heat exchanger gas pipe
thermistor (R6T).
Replace the main PCB
(A1P).
(R13030)
Troubleshooting