Outdoor Unit: Malfunction Of Thermistor (R4T) For Suction Pipe - Daikin VRV K Manual

SI-95.BOOK Page 97 Friday, March 31, 2000 10:59 AM
Si-95

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

J J J J 5 5 5 5
Remote Controller
Display
I Defect of thermistor (R4-1T, R4-2T) for outdoor unit suction pipe
Supposed Causes
I Defect of outdoor unit PC board (A1P)
Troubleshooting
The alarm indicator is displayed when the fan is being used also.
Troubleshooting Inverter K Series
Connector is
NO
connected to X14A, X15A
of outdoor unit PC
board (A1P).
YES
Resistance
is normal when
measured after
NO
disconnecting the thermistor
(R4-1T, R4-2T) from the
indoor unit PC board.
(3.5kΩ ~
360kΩ)
YES
Troubleshooting
Connect the thermistor and turn on
again.
Replace the thermistor (R4-1T or
R4-2T)
Replace outdoor unit PC board A1P.
(VF047)
97