Panasonic CU-8ME1XPK - Outdoor Unit: Malfunction of Thermistor (R2 T) for Heat Exchanger

PACD011001C2 Troubleshooting
Troubleshooting UM Combination “MA1R Series” Using R-407C 519
3.22 Outdoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger
Remote Controller
Display
J6
Supposed Causes
„
Defect of thermistor (R2-1(11)T, R2-2(12)T or R2-13T) for outdoor unit coil
„
Defect of outdoor unit PC board (A1P)
Troubleshooting
The alarm indicator is displayed when the fan is being used also.
Note:
16~20HP class ··· R2-1T, R2-2T (A1P)
24~30HP class ··· R2-11T, R2-12T (A1P), R2-13T (A3P)
(VF048)
Resistance
is normal when
measured after
disconnecting the thermistor
(R2-1(11)T, R2-2(12)T or
R2-13T) from the indoor
unit PC board.
(3.5kΩ~
360kΩ)
Replace outdoor unit PC board A1P or
A3P.
Connect the thermistor and turn on
again.
NO
NO
Replace the thermistor (R2-1(11)T, R2-
2(12)T or R2-13T).
YES
YES
Connector
is connected to X18A or
X19A ofoutdoor unit PC
board (A1P or
A3P).
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.