F3" Outdoor Unit: Abnormal Discharge Pipe Temperature - Daikin ERQ Service Manual

Troubleshooting by Indication on the Remote Controller
F3
3.21 " " Outdoor Unit: Abnormal Discharge Pipe
Temperature
F3
Remote
Controller
Display
Applicable
ERQ 125 ~ 200 A7V1
Models
Method of Abnormality is detected according to the temperature detected by the discharge pipe
Malfunction temperature sensor.
Detection
Malfunction
When the discharge pipe temperature rises to an abnormally high level
Decision When the discharge pipe temperature rises suddenly
Conditions
Supposed
Causes
Troubleshooting
thermistor from the outdoor PC
∗ Refer to "Thermistor Resistance / Temperature Characteristics" table on P233.
190
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
board, and then make
measurement of resistance
using a multiple meter.
Are
the characteristics
of the discharge pipe
thermistor normal?
(3.5~400KΩ)
∗
YES
YES
NO
: http://splitoff.ru/tehn-doc.html
ESIE09-05
Refrigerant shortage, compression
defect, etc. Defect of the
refrigerant system.
Replace the discharge pipe
thermistor.
Replace outdoor unit PC board
(A1P).
(V3068)
Troubleshooting