Reactor Temperature Rise Abnormality - Daikin REYQ-TA Series Service Manual

Troubleshooting by Error Code

3.42 Reactor Temperature Rise Abnormality

L3
Error Code
Applicable
All outdoor unit models
Models
Method of Error
Detect according to the value detected with the reactor surface thermistor.
Detection
Error Decision When the temperature detected with the reactor surface thermistor is more than the specified
Conditions temperature.
Supposed
Causes
Troubleshooting
231
Defective connection of harness
Defective reactor surface thermistor
Defective inverter PCB
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Is
reactor
harness connected to
the terminal strip
correctly?
YES
Is the
wiring
disconnection in the
reactor thermistor?
NO
NO
YES
SiUS371614E
Connect the harness
correctly.
Replace the thermistor.
Replace the inverter PCB.
REYQ72TA: A3P
REYQ96-168TA: A3P, A6P
Service Diagnosis