Discharge Pipe Thermistor (R2T) Abnormality - Daikin RMXS-L Series Service Manual

Troubleshooting for Outdoor Unit

7.10 Discharge Pipe Thermistor (R2T) Abnormality

J3
Error Code
Method of Error The temperature detected by discharge pipe thermistor determines the error.
Detection
Error Decision When a short circuit or an open circuit in the discharge pipe thermistor is detected
Conditions
Supposed
Causes
Troubleshooting
Refer to Thermistor Resistance/Temperature Characteristics table 2 on page 268.
238
Disconnection of thermistor
Defective discharge pipe thermistor (R2T)
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 connected to X12A
on the main PCB
(A1P)?
YES
Is the
resistance
normal when
NO
measured after
disconnecting the
thermistor (R2T)?
(5.0 kΩ ~ 640 kΩ)
YES
SiUS181631EA
Connect the thermistor and
turn on again.
Replace the discharge pipe
thermistor (R2T).
Replace the main PCB
(A1P).
(R13026)
Troubleshooting