Indoor Unit: Malfunction Of Capacity Determination Device; Indoor Unit: Malfunction Of Thermistor (R2T) For Liquid Pipe - Daikin VRV R-407C PLUS Series Service Manual

Troubleshooting
3.8

Indoor Unit: Malfunction of Capacity Determination Device

AJ
Remote controller
display
Supposed Causes
Troubleshooting
3.9

Indoor Unit: Malfunction of Thermistor (R2T) for Liquid Pipe

C4
Remote Controller
Display
Supposed Causes
Troubleshooting
134
You have forgotten to install the capacity setting adaptor.
Defect of indoor unit PC board
The indoor
unit PC board was replaced
with a replacement
PC board.
YES
The indoor
unit is a model that
requires installation of a
capacity setting adaptor when
replacing the PC
board.
YES
Defect of thermistor (R2T) for liquid pipe
Defect of indoor unit PC board
Connector
is connected to X12A
of the indoor unit
PC board.
YES
Resistance
is normal when
measured after
disconnecting the thermistor
(R2T) from the indoor
unit PC board
(3.5kΩ~
360kΩ)
YES
NO
NO
NO
NO
Replace the indoor unit PC board.
Replace the indoor unit PC board.
Install a capacity setting adaptor.
(VF035)
Connect the thermistor and turn on
again.
Replace the thermistor (R2T).
Replace the indoor unit PC board.
Troubleshooting R-407C PLUS Series
SiE 00-07
(VF036)