F3" Outdoor Unit: Abnormal Discharge Pipe Temperature - Daikin VRV II REYQ8MY1B Service Manual

Troubleshooting by Indication on the Remote Controller
2.20 " F3 " Outdoor Unit:
Temperature
F3
Remote
Controller
Display
Applicable REYQ8~48M
Models
Method of Abnormality is detected according to the temperature detected by the discharge pipe
temperature sensor.
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
∗2: Refer to thermistor resistance / temperature characteristics table on P.275.
172
Abnormal Discharge Pipe
When the discharge pipe temperature rises to an abnormally high level
When the discharge pipe temperature rises suddenly
Faulty discharge pipe temperature sensor
Faulty connection of discharge pipe temperature sensor
Faulty outdoor unit PCB
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Discharge pipe
temperature is 115˚C
or higher.
NO
Are
the characteristics
of the discharge pipe
thermistor normal?
(3.5~400KΩ)
YES
YES
NO
Si39-306
Out of gas, compression defect,
etc. Defect of the refrigerant
system.
Replace the discharge pipe
thermistor.
Replace outdoor unit PC board
A2P.
(V3068)
Troubleshooting