Daikin VRV IV+ Service Manual page 355

3.21.2 Other thermistors
Checking procedures
To perform an electrical check of the fin thermistor
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
1 Stop operation of the outdoor unit and wait for at least 30 minutes.
2 Measure the ambient temperature close to the outdoor unit.
3 Connect the service checker tool to the outdoor unit.
4 Read the temperature of the specific PCB fin thermistor. The read
temperature MUST correspond to the measured ambient temperature.
Does the temperature of the fin
thermistor match with the ambient
temperature?
Yes
No
3
|
Action
Thermistor is OK. Return to the
troubleshooting of the specific error
and continue with the next procedure.
Replace the specific PCB, see
4
"3 Components" [ 206].
Components
Service manual
355