3.10 " C5 " Indoor Unit; Malfunction Of Thermistor (R3T) For Gas Pipes; C5" Indoor Unit: Malfunction Of Thermistor (R3T) For Gas Pipes - Daikin RXYQ5-48MAY1 Service Manual

Troubleshooting by Indication on the Remote Controller

3.10 " C5 " Indoor Unit:

Pipes
C5
Remote
Controller
Display
Applicable All indoor unit models
Models
Method of Malfunction detection is carried out by temperature detected by gas pipe thermistor.
Malfunction
Detection
Malfunction When the gas pipe thermistor becomes disconnected or shorted while the unit is running.
Decision
Conditions
Supposed
Causes
Troubleshooting
∗2: Refer to thermistor resistance / temperature characteristics table on P319.
194
Malfunction of Thermistor (R3T) for Gas
Defect of indoor unit thermistor (R3T) for gas pipe
Defect of indoor unit PC board
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Connector is
connected to X11A of
the indoor unit PC
board.
YES
Resistance
is normal when
measured after
disconnecting the thermistor
(R3T) from the indoor
unit PC board.
(0.6kΩ~
360kΩ)
YES
NO
NO
Si39-407
Connect the thermistor and turn
on again.
Replace the thermistor (R3T).
Replace the indoor unit PC board.
(V2785)
Troubleshooting