2.26 "J5" Outdoor Unit; J5" Outdoor Unit: Malfunction Of Thermistor (R2T) For Suction Pipe; Malfunction Of Thermistor (R2T) For - Daikin RXYQ72 Serivce Manual

SiUS39-601

2.26 "J5" Outdoor Unit:

Suction Pipe
J5
Remote
Controller
Display
Applicable RXYQ72M, 96M
Models
Method of Malfunction is detected from the temperature detected by the suction pipe temperature thermistor.
Malfunction
Detection
Malfunction When a short circuit or an open circuit in the suction pipe temperature thermistor is detected.
Decision
Conditions
Supposed
Causes
Troubleshooting
∗
Troubleshooting

Malfunction of Thermistor (R2T) for

Defect of thermistor (R2T) for outdoor unit suction pipe
Defect of outdoor unit PC board (A1P)
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Connector
is connected to
X37A, of outdoor unit
PC board.
(A1P)
YES
Resistance
is normal when
measured after
disconnecting the thermistor
(R2T) from the outdoor
unit PC board.
(3.5kΩ ~
360kΩ)
1
*
YES
1: Refer to thermistor resistance / temperature characteristics table on P239.
Troubleshooting by Indication on the Remote Controller
NO
NO
Connect the thermistor and turn
on again.
Replace the thermistor R2T.
Replace outdoor unit PC board
(A1P).
(V3073)
153