Daikin VRV Inverter K Series - Outdoor Unit: Malfunction of Thermistor for Outdoor Air (R1 T); Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R3 T

Troubleshooting SiE-05C
144 Troubleshooting Inverter K Series
3.19 Outdoor Unit: Malfunction of Thermistor for Outdoor Air (R1T)
Remote Controller
Display
HH
HH
99
99
Supposed Causes  Defect of thermistor (R1T) for outdoor unit outdoor air intake
 Defect of outdoor unit PC board (A1P)
Troubleshooting
The alarm indicator is displayed when the fan is being used also.
3.20 Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R3T)
Remote Controller
Display
JJ
JJ
33
33
Supposed Causes  Defect of thermistor (R3T, R3-1T, R3-2T) for outdoor unit discharge pipe
 Defect of outdoor unit PC board (A1P)
Troubleshooting
The alarm indicator is displayed when the fan is being used also.
(VF045)
Resistance
is normal when
measured after
disconnecting the thermistor
(R1T) from the outdoor
unit PC board.
(3.5kΩ~
360kΩ)
Connector is
connected to X20A of outdoor
PC board (A1P).
Replace outdoor unit PC board A1P.
Connect the thermistor and turn on
again.
NO
NO
Replace the thermistor (R1T)
YES
YES
(VF046)
Resistance
is normal when
measured after
disconnecting the thermistor
(R3T, R3-1T, R3-2T) from
the indoor unit PC board.
(3.5kΩ~
400kΩ)
Replace outdoor unit PC board A1P.
Connect the thermistor and turn on
again.
NO
NO
Replace the thermistor (R3T, R3-1T,
R3-2T)
YES
YES
Connector
is connected to X17A (18)
of outdoor unit PC board
(A1P).
SI-05C.BOOK Page 144 Monday, November 6, 2000 4:13 PM
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