J9" Outdoor Unit: Malfunction Of Thermistor (R4T) For Subcooling Heat Exchanger Gas Pipe - Daikin ERSQ 011AAV1 Service Manual

Troubleshooting by Indication on the Remote Controller
3.31 "J9 " Outdoor Unit: Malfunction of Thermistor (R4T) for
Subcooling Heat Exchanger Gas Pipe
J9
Remote Control
Display
Applicable
ER*Q 011~016*
Models
Method of
Malfunction is detected according to the temperature detected by subcooling heat exchanger
gas pipe thermistor.
Malfunction
Detection
Malfunction
When the subcooling heat exchanger gas pipe thermistor is short circuited or open.
Decision
Conditions
Supposed
Causes
Troubleshooting
∗ Refer to "Thermistor Resistance / Temperature Characteristics" table on P229.
170
Faulty subcooling heat exchanger gas pipe thermistor (R4T)
Faulty outdoor unit PC board
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Is the
connector for
subcooling heat
exchanger gas pipe
thermistor connected to
X12A of outdoor unit
PC board
(A1P)?
YES
Is the
resistance
measured after
removing the thermistor
(R4T) from outdoor unit PC
board normal?
(3.5 kΩ to 360 kΩ)
YES
NO
NO
ESIE09-08
Connect connector and operate
unit again.
Replace thermistor (R4T).
Replace outdoor unit PC board
(A1P).
(V3075)
Troubleshooting