Outdoor Unit: Malfunction Of Thermistor (R4T) For Suction Pipe; Outdoor Unit: Malfunction Of Thermistor (R2T) For Heat Exchanger - Daikin VRV Inverter K Series Manual

SI-05C.BOOK Page 145 Monday, November 6, 2000 4:13 PM
SiE-05C

3.21 Outdoor Unit: Malfunction of Thermistor (R4T) for Suction Pipe

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Remote Controller
Display
Supposed Causes
Troubleshooting
The alarm indicator is displayed when the fan is being used also.

3.22 Outdoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger

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Remote Controller
Display
Supposed Causes
Troubleshooting
The alarm indicator is displayed when the fan is being used also.
Troubleshooting Inverter K Series
Defect of thermistor (R4T) for outdoor unit suction pipe
Defect of outdoor unit PC board (A1P)
Connector
NO
is connected to X16A of
outdoor unit PC board
(A1P).
YES
Resistance
is normal when
measured after
NO
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 (A1P)
Connector
NO
is connected to X19A of
outdoor unit PC board
(A1P).
YES
Resistance
is normal when
measured after
NO
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 A1P.
Connect the thermistor and turn on
again.
Replace the thermistor (R2T)
Replace outdoor unit PC board A1P.
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Troubleshooting
(VF047)
(VF048)
145