Daikin VRV Inverter K Series Manual page 323

SI-05C.BOOK Page 309 Monday, November 6, 2000 4:13 PM
SiE-05C
3.12 Outdoor Unit: Malfunction of Thermistor (R4T) for Suction Pipe
J J J J 5 5 5 5
Remote Controller
Display
Supposed Causes
Troubleshooting
Troubleshoot the outdoor unit for which the HWL is lit in accordance with the following flow chart.
The alarm indicator is displayed when the fan is being used also.
3.13 Outdoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger
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Remote Controller
Display
Supposed Causes
Troubleshooting Troubleshoot the outdoor unit for which the HWL is lit in accordance with the following flow chart.
The alarm indicator is displayed when the fan is being used also.
Troubleshooting PLUS Series
Defect of thermistor (R4T) for outdoor unit suction pipe
Defect of outdoor unit PC board
Connector
NO
is connected to X16A of
outdoor unit PC
board .
YES
Resistance
is normal when
NO
measured after disconnecting
the thermistor (R4T) from the
indoor unit PC board.
(3.5kΩ~
360kΩ)
YES
Defect of thermistor (R2T) for outdoor unit coil
Defect of outdoor unit PC board
Connector
NO
s connected to X19A of
outdoor unit PC
board.
YES
Resistance
is normal when
NO
measured after disconnecting
the thermistor (R2T) from the
indoor unit PC board.
(3.5kΩ~
360kΩ)
YES
Connect the thermistor and
turn on again.
Replace the thermistor (R4T)
Replace outdoor unit PC
board.
INV outdoor unit : A1P
Constant speed outdoor unit :
A1P
Connect the thermistor and
turn on again.
Replace the thermistor (R2T)
Replace outdoor unit PC
board.
INV outdoor unit : A1P
Constant speed outdoor unit :
A1P
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Troubleshooting
(VF146)
(VF147)
309