J8"Malfunction Of Oil Equalizing Pipe Thermistor (R7T) - Daikin RXYQ72 Serivce Manual

Troubleshooting by Indication on the Remote Controller

"J8"Malfunction of Oil Equalizing Pipe Thermistor (R7T)

2.29
J8
Remote
Controller
Display
Applicable RXYQ72M, 96M
Models
Method of Malfunction is detected according to the temperature detected by oil equalizing pipe thermistor.
Malfunction
Detection
Malfunction When the oil equalizing pipe thermistor is short circuited or open.
Decision
Conditions
Supposed
Causes
Troubleshooting
∗
156
Faulty oil equalizing pipe thermistor (R7T)
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 oil equalizing
pipe thermistor
connected to X37A on
outdoor unit PC
board (A1P)?
YES
Is the
resistance
measured after
removing the thermistor
(R7T) from outdoor unit PC
board normal?
(3.5 kΩ to
360 kΩ)
∗1
YES
1: Refer to thermistor resistance / temperature characteristics table on P239.
NO
NO
SiUS39-601
Connect thermistor and operate
unit again.
Replace thermistor (R7T).
Replace outdoor unit PC board
(A1P).
(V3075)
Troubleshooting