F3" Outdoor Unit; Abnormal Discharge Pipe Temperature; F3" Outdoor Unit: Abnormal Discharge Pipe Temperature - Daikin RXYSQ4-5-6PA7V1B Service Manual

Troubleshooting by Indication on the Remote Controller
F3
3.24 " " Outdoor Unit:
Temperature
F3
Remote
Controller
Display
Applicable RXYSQ4~6PA
Models
Method of Abnormality is detected according to the temperature detected by the discharge pipe
temperature sensor.
Malfunction
Detection
Malfunction When the discharge pipe temperature rises to an abnormally high level
When the discharge pipe temperature rises suddenly
Decision
Conditions
Supposed
Causes
Troubleshooting
∗
172
Abnormal Discharge Pipe
Faulty discharge pipe temperature sensor
Faulty connection of discharge pipe temperature sensor
Faulty outdoor unit PC board
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Discharge
pipe temperature is
120˚C or higher when the
unit stop by
malfunction.
NO
Pull out the discharge pipe
thermistor from the outdoor PC
board, and then make
measurement of resistance
using a multiple meter.
Are
the characteristics
of the discharge pipe
thermistor normal?
(3.5~400KΩ)
∗
YES
Refer to "Thermistor Resistance / Temperature Characteristics" table on P252.
YES
NO
SiBE34-802
Refrigerant shortage, compression
defect, etc. Defect of the
refrigerant system.
Replace the discharge pipe
thermistor.
Replace outdoor unit PC board
(A1P).
(V3068)
Troubleshooting