Troubleshooting for Outdoor Unit SiUS181631EA
238 Troubleshooting
7.10 Discharge Pipe Thermistor (R2T) Abnormality
Error Code
J3
Method of Error
Detection
The temperature detected by discharge pipe thermistor determines the error.
Error Decision
Conditions
When a short circuit or an open circuit in the discharge pipe thermistor is detected
Supposed
Causes
îš„
Disconnection of thermistor
îš„
Defective discharge pipe thermistor (R2T)
îš„
Defective main PCB (A1P)
Troubleshooting
Refer to Thermistor Resistance/Temperature Characteristics table 2 on page 268.
Is the thermistor
ASSY connected to X12A
on the main PCB
(A1P)?
Is the
resistance
normal when
measured after
disconnecting the
thermistor (R2T)?
(5.0 kΩ ~ 640 kΩ)
Replace the main PCB
(A1P).
(R13026)
Connect the thermistor and
turn on again.
NO
Replace the discharge pipe
thermistor (R2T).
NO
YES
YES
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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