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
Supposed
Causes
Troubleshooting
Refer to Thermistor Resistance/Temperature Characteristics table 1 on page 267.
242
Disconnection of thermistor
Defective subcooling heat exchanger gas pipe thermistor (R6T)
Defective main PCB (A1P)
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
SiUS181631EA
Connect the thermistor and
turn on again.
Replace the subcooling
heat exchanger gas pipe
thermistor (R6T).
Replace the main PCB
(A1P).
(R13030)
Troubleshooting