OUT-53
DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
Outline of malfunction
Malfunction of T2 sensor (heat exchanger) on Indoor Unit
OPERATION
TIMER
DEF./FAN
OFF
OFF
Flashing
ALARM
OFF
NO
NO
YES
YES
NO
Check connector and wirings of
T2 sensor: are both OK?
Replace T2 sensor. Does
malfunction indication appear
again?
Do R-T features of T2 sensor
correspond to those that are
listed further on?
Replace Indoor Unit’s PCB.
YES
Replace Indoor Unit’s PCB.
The problem is solved.
Restore connector of
temperature sensor and
connect it again to Indoor
Unit’s PCB.
Malfunction of temperature sensor T2 (heat
exchanger’s temperature sensor) on Indoor
Unit.
• Troubleshooting by LED indicators of Multi Liberty (HTFU, HSFU, HRBU) X Indoor Units