Indoor Unit: Malfunction Of Thermistor (R3T) For Gas Pipes; Indoor Unit: Malfunction Of Thermistor (R1T) For Air Inlet - Daikin VRV R-407C PLUS Series Service Manual

SiE 00-07

3.10 Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes

C5
Remote Controller
Display
Supposed Causes
Troubleshooting

3.11 Indoor Unit: Malfunction of Thermistor (R1T) for Air Inlet

C9
Remote Controller
Display
Supposed Causes
Troubleshooting
Troubleshooting R-407C PLUS Series
Defect of indoor unit thermistor (R3T) for gas pipe
Defect of indoor unit PC board
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
Defect of indoor unit thermistor (R1T) for air inlet
Defect of indoor unit PC board
Connector
is connected to X13A of
the indoor unit PC
board.
YES
Resistance
is normal when
measured after
disconnecting the thermistor
(R1T) from the indoor unit
PC board. (7.2kΩ~
112kΩ)
YES
NO
NO
NO
NO
Troubleshooting
Connect the thermistor and turn on
again.
Replace the thermistor (R3T).
Replace the indoor unit PC board.
(VF037)
Connect the thermistor and turn on
again.
Replace the thermistor (R1T).
Replace the indoor unit PC board.
(VF038)
135