Malfunction Of Sub-Cooling Gas Pipe Thermistor (R5T); J9" Malfunction Of Sub-Cooling Gas Pipe Thermistor (R5T) - Daikin RXYQ72 Serivce Manual

SiUS39-601
2.30 "J9"

Malfunction of Sub-Cooling Gas Pipe Thermistor (R5T)

J9
Remote
Controller
Display
Applicable RXYQ72M, 96M
Models
Method of Malfunction is detected according to the temperature detected by Sub Cooling gas pipe thermistor.
Malfunction
Detection
Malfunction When the Sub Cooling gas pipe thermistor is short circuited or open.
Decision
Conditions
Supposed
Causes
Troubleshooting
∗
Troubleshooting
Faulty Sub Cooling gas pipe thermistor (R5T)
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 Sub Cooling
gas pipe thermistor
connected to X37A on
outdoor unit PC
board (A1P)?
YES
Is the
resistance
measured after
removing the thermistor
(R5T) from outdoor unit PC
board normal?
(3.5 kΩ to
360 kΩ)
1
*
YES
1: Refer to thermistor resistance / temperature characteristics table on P239.
Troubleshooting by Indication on the Remote Controller
NO
NO
Connect thermistor and operate
unit again.
Replace thermistor (R5T).
Replace outdoor unit PC board
(A1P).
(V3075)
157