Daikin ALTHERMA HT ERSQ 014 V1 - F3 Outdoor Unit: Abnormal Discharge Pipe Temperature

Troubleshooting by Indication on the Remote Controller ESIE09-08A
174 Troubleshooting
3.23 “F3 ” Outdoor Unit: Abnormal Discharge Pipe Temperature
Remote Control
Display
F3
Applicable Models ER*Q 011~016*
Method of
Malfunction
Detection
Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor.
Malfunction
Decision Conditions
When the discharge pipe temperature rises to an abnormally high level
When the discharge pipe temperature rises suddenly
Supposed Causes  Faulty discharge pipe temperature sensor
 Faulty connection of discharge pipe temperature sensor
 Faulty outdoor unit PC board
Troubleshooting
 Refer to “Thermistor Resistance / Temperature Characteristics” table on P251.
(V3068)
Caution
Be sure to turn o power switch before connect or disconnect connector, or
parts damage may be occurred.
Discharge
pipe temperature is
120°C or higher when the unit
stop by malfunction.
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)*
Replace outdoor unit PC board
(A1P).
Replace the discharge pipe
thermistor.
NO
NO
Refrigerant shortage, compression
defect, etc. Defect of the refrigerant
system.
YES
YES