Subcooling Heat Exchanger Gas Pipe Thermistor (R6T) Abnormality - Daikin Super Multi Plus E-Series FTXG25EV1BW Service Manual

SiBE18-821_C
7.14 Subcooling Heat Exchanger Gas Pipe Thermistor (R6T)
Abnormality
J9
Remote
Controller
Display
Method of The temperature detected by subcooling heat exchanger gas pipe thermistor determines the
error.
Malfunction
Detection
Malfunction When the subcooling heat exchanger gas pipe thermistor is short circuited or open
Decision
Conditions
Supposed
Causes
Troubleshooting
Refer to "Thermistor Resistance / Temperature Characteristics" table 2 on page 427.
Troubleshooting
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 to 360 kΩ)
YES
Troubleshooting for Outdoor Unit
Connect the thermistor and
turn on again.
Replace the subcooling
heat exchanger gas pipe
thermistor (R6T).
Replace the main PCB
(A1P).
(R13030)
399